More 2¢ Tips!
Send Linux Tips and Tricks to gazette@linuxgazette.net
More 2¢ Tips!
No Linux support Lexmark 40 printers
For your information:
The Lexmark 40 color printers do all setup/alignment from MS whatever OS.
Lexmark first told me they don't support Linux on their new 40 & 45 printers (all alignment functions are from software under MS something). But hey, the guys at Lexmark came through. They sent me a C program for aligning the printer.
It would be a good candidate to go into an archive (sunsite.unc.edu). I don't know the process for putting software into an archive so I am passing it on to you folks. I also am sending it to Grant Taylor gtaylor+pht@picante.com, who is listed as the custodian of the Printing-HOWTO. The model 40 printer is PostScript and works well.
The Mailbag: Re: text browsers
User has problems with <B>, that is not visible in lynx.Well, this is not the problem of the page, but a problem of lynx configuration. At the bottom of the default lynx config file one can configure the colors for the display of the different tags as one wishes. It is very clear from the comments in the config file on how to do it. One can start lynx with an option lynx -f config.file if I remember right.
Tomas
RE: Problem mounting vfat filesystem ...
Jan Jansta wrote...Here's what I've done. The exact line from my /etc/fstab:
I have permanent problem with mounting any vfat/dos filesystem with write permisions for all users on my Linux machine. I'm using Red Hat 5.1, kernel version 2.0.34 . Does someone know what's not working properly ?
/dev/hda1 /mnt/win95 vfat umask=000,auto 1 1The trick is in setting the umask. Caolan
Re: Linux Newbie
I saw your letter to Linux Gazette and decided to drop you a few pointers.
Linux Documentation Project:
First, the Linux Documentation Project is your friend. Take a look around
the site http://sunsite.unc.edu/LDP/. The documents that you'll find most
valuable as a new Linux user are the "Installation and Getting Started
Guide" and the "The Linux Users' Guide". Both are available for download in
multiple formats. Descriptions and pointers are at
http://sunsite.unc.edu/LDP/ldp.html. If you really consider yourself (or
your curious friends) clueless, then I'd advise you to buy a ream of paper
and print the PDF version of the Linux User's Guide for casual reading.
Then get one of the easier distributions, back up your Win95 data, and give
Linux a whirl.
Linux Distributions:
I'd recommend Caldera http://www.caldera.com/ for casual non-programmers
that are comfortable with Win95 and just want to try Linux. Current
versions of Caldera come with the KDE desktop http://www.kde.org/. KDE
presents a familiar interface to Win95 users. Red Hat
http://www.redhat.com/ is very popular and also relatively easy but is
oriented more toward knowledgeable computer users. I'm not familiar enough
with SUSE http://www.suse.com/ to make a recommendation, although it's
supposed to be easy too. Debian http://www.debian.org/ and Slackware
http://www.slackware.org/ are considered by most to be for those who
already know how to install and use Linux. There are other distributions,
but these are the most popular.
Included Documentation:
Once you get Linux installed, fire up Midnight Commander from the command
line using 'mc'. This is an easy to use file manager that, despite its DOS
look & feel, is also powerful. Use it to take a look around the /usr/doc
directory for the wealth of documentation installed in any popular Linux
system. You'll be astounded at the amount of information available if
you're accustomed to the Win95 way of doing things. The HOWTO documents in
particular will be very useful to new users. HOWTOs are cookbook-style
documents written by Linux users who have taken the time to share the steps
they took to accomplish something in Linux. Perhaps if you use Linux for a
while, you'll have occasion to write a HOWTO of your own.
Manual Pages
If you see references to a command in Linux and would like to know more
about using it, chances are you'll find a comprehensive description of the
command and all its options in the associated Manual Page. Just type: 'man
command' at the command line, substituting the name of the command you're
interested in and you'll be presented with a summary of the syntax, usage,
and available options for the command. Many man pages also include examples
and references to related man pages and commands. To see how to use the
manual page system itself, just use 'man man'.
Mailing Lists and Newsgroups
Mailing lists and newsgroups provide a good way to find the answer to a
question you haven't been able to find the answer to in the extensive
documentation included with Linux or available from the LDP. Mailing lists
are generally archived and the archives will probably be able to answer
your question. If not, post a note asking for a pointer to the
documentation and you'll probably get several good answers. If the problem
is simple enough, you'll probably get an explanation too. I've found
pointers to comprehensive documentation to be more valuable in the long run
though. Often, understanding the solution to one problem allows you to
solve other problems later. When subscribing to a mailing list or
newsgroup, try to find one that's specific to the distribution you use.
Most things are the same across distributions, but there are enough small
differences that new users would be best served by getting help that's
specific to their distribution.
One more thing; be prepared to do lots of reading. ;-)
--
Anthony E. Greene
Locally Searching the Linux Gazette
To begin with, I often like to browse and/or reference present and past issues of the Linux Gazette. But, since I'm not always connected to the Internet, and even when I am, I hate waiting for a page to download; I mirror it locally, both at home, and at work.
On occasion I have found myself grepping the TWDT files for specific references to various topics, commands, packages, or whatever. But, just a plain grep of lg/issue??/issue??.html, will only show references in all but the first 8 issues. So, I made some minor changes in lg/issue01to08, and put an alias (command) in ~/.bashrc, to allow easy scanning of ALL issues.
First, the changes:
cd ~/html/lg/issue01to08 ln linux_gazette.html lg_issue1.html ln linux_gazette.aug.html lg_issue2.html ln linux_gazette.sep.html lg_issue3.html ln linux_gazette.oct.html lg_issue4.html ln linux_gazette.nov.html lg_issue5.htmlNow the command declaration (for bash):
lgfind () { command grep -i ""$@"" ~/html/lg/issue01to08/lg_issue?.html ~/html/lg/issue??/issue??.html | more ; }
The same declaration in C-shell (csh):
alias lgfind 'grep -i ""\!*"" ~/html/lg/issue01to08/lg_issue?.html ~/html/lg/issue??/issue??.html | more'I suppose I could have used "linux_gazette*" in my grep, but that would have put the resulting output out of order. Besides, these links allow the grep to show which issue number a match is found in.
And I suppose I could also have created either soft or hard links to ALL of the TWDT files in another directory. But I would then have to go there and add another link, every time a new issue came out.
Using this is simple, just:
lgfind <string>and obvious to most experienced UNIX users, I quote the string if it contains spaces. Also, the string can be a regex expression. You may have noticed the "-i" -- I don't like having to remember the case of the characters I'm looking for.
Once I have the output of lgfind, I point my browser to another html page that I have generated, that contains just links to all of the TWDT files. I will attach that page to this message. You can either add it to the base files, publish it, or whatever TYO. ;-) I put it in the directory that contains your `lg' directory.
I hope this helps someone else, too.
Ray Marshall
PS: I agree with your decision to use "TWDT". It can be read in whatever way one wishes, including very inoffensively. Wise choice.
Re: Problem mounting vfat filesystem
From: Jan Jansta
I have a permanent problem with mounting any vfat/dos filesystem with write permissions for all users >on my Linux machine. I'm using Red Hat 5.1, kernel version 2.0.34 Does someone know what's not working properly ?
I had somewhat the same problem. What I did was to put this in my
/etc/fstab: /dev/hda1 /dos vfat user,noauto 0 0I don't always want my /dos partition mounted, because I don't want its files cluttering up my db for locating files. But making it a user partition means that anyone can mount and use it.
Good luck,
Nick
Mounting DOS Partitions in Linux
Secure Mounting for DOS Partitions:
In order to open up permissions on your DOS partitions in a secure way, do the following:
Note: in the samples below, the dos usrid (63) and grpid(63) were selected so they wouldn't duplicate any other usrid or grpid in /etc/passwd or /etc/group.
Also, this solution works with Red Hat 5.1, you may have to adjust it slightly if you are using a different distribution.
1) Make a dos user who can't log in by adding the following line to /etc/passwd: dos:*:63:63:MSDOS Accessor:/dos:
2) Make a dos group and add users to the dos group. In the following example, root and ejy are in the dos group. To do this, add a line like the following to /etc/group: dos::63:root,ejy
3) Add the following line (changed to suit your system) to
/etc/fstab:
/dev/hda1 /C vfat uid=63,gid=63,umask=007 0 0
Of course, you have to locate your DOS partitions in the
first place. This is done by issuing the following
commands as 'root':
/sbin/fdisk -l
df
cat /etc/fstab
The `fdisk -l` command lists all available devices. `df`
shows which devices are mounted and how much is on them.
And /etc/fstab lists all mountable devices. The devices
remaining are extended partitions, a kind of a partition
envelope, which you don't want to mount. And the
partition's allocated to other operating systems which you
may want to mount.
4) Create a mount point for your DOS disk by issuing the following commands as root: mkdir /C chown dos:dos /C
With this setup, the C: drive is mounted at boot time to /C. Only root and ejy can read and write to it. Note that vfat in /etc/fstab works for vfat16 (and vfat32 natively for Linux 2.0.34 and above).
Enjoy...
Re: Canon BJC-250 question
In issue 33 of the Linux Gazette you wrote:When people are talking about printer drivers for Linux, they are mostly referring to a piece of code that enables the "Ghostscript" program to produce output on your printer.
I have a Canon BJC-250 color printer. I have heard many people say that the BJC-600 printer driver will let me print in color. But I have not heard anyone say where I can get such a driver. I have looked everywhere but where it is. Can you help me?
Ghostscript is an interpreter of the Postscript page-description language. In the Unix world, it is kind of a lingua franca of talking to a printer. A lot of programs can produce Postscript output.
More expensive printers support Postscript in hardware, other printers need Ghostscript with a driver for that particular printer compiled in.
Invoke Ghostscript as "gs -?" to see a list of all the printers for which support is compiled in. If your printer is not in the list, use a driver for a printer from the same family. Otherwise you might have to compile GhostScript with another driver.
The Ghostscript 5.1 that I'm using (Debian distro) is compiled with the bjc600 driver.
Roland
Re: Help : Modem + HP
In issue 33 of the Linux Gazette you wrote:To use a Plug-and-Play device under Linux, you have to configure it. For that, you can use isapnptools package. It will probably be included with your distribution.
I have already spent hours trying to fix my Supra336 PnP internal modem and my HP DeskJet 720C under Linux! The result is always the same, no communication with teh modem and no page printed on the HP printer! Could someone help me, I am close to abandon!
Log in as root, and execute the command "pnpdump >isapnp.conf" Now edit this file to choose sensible values for the parameters the modem requires. Read the isapnp.conf man page. You might want to do "cat /proc/interrupts", "cat /proc/dma" and "cat /proc/ioports" to see which interrupts, DMA channels and I/O addresses are already in use. Once you're finished. copy the isapnp.conf file to /etc (as root). You can now configure the card by issuing the command "isapnp /etc/isapnp.conf" as root.
This probably must be done before the serial ports are configured. Look at the init(8) manpage, and see where the serial ports are configured in the system initialization scripts. Make sure that isapnp is called before the serial ports are configured.
If the modem is an internal one, you might have to disable one of the serial ports in your BIOS, so the modem can use in's address and interrupt.
Now, about the printer, AFIAK all HP *20 models are Windows-only printers. They use the host computer's CPU to perform all kinds of calculations that are normally done by the printer hardware. Therefore it needs a driver. Since HP doesn't release programming info on these devices, there will probably never be Linux drivers for these printers.
You should avoid this kind of brain-dead hardware (mostly referred to as "winprinters", or "winmodems").
Hope this helps :-)
Roland
Gnat and Linux: C++ and Java Under Fire LG #33
If you want the best of both worlds of Java and Ada, write applets targeted to the JVM in Ada! See these URLs for further info:
http://www.adahome.com/Resources/Ada_Java.html http://www.buffnet.net/~westley/AdaJava/
--
Terry J. Westley
Re: Canon BJC-250 question
You asked:Most printing on Linux is handled through the use of the Ghostscript drivers. Ghostscript takes postscript input directed to it via the lpr command and converts it to the raw data streams that a particular output device can handle. Ghostscript can handle devices like printers but can also be used to display postscript files to your display (via the ghostview program).
I have a Canon BJC-250 color printer. I have heard many people say that the BJC-600 printer driver will let me print in color. But I have not heard anyone say where I can get such a driver. I have looked everywhere but where it is. Can you help me?
To see if you have ghostscript installed, type the following:
% gs -v"gs" is the command name for the ghostscript program (yes, it's really a program that has a bunch of output drivers compiled into it). The -v option asks it to print version information. If you have gs installed you'll see something like this:
Aladdin Ghostscript 4.03 (1996-9-23)
Copyright (C) 1996 Aladdin Enterprises, Menlo Park, CA. All rights
reserved.
Usage: gs [switches] [file1.ps file2.ps ...]
Most frequently used switches: (you can use # in place of =)
-dNOPAUSE no pause after page | -q `quiet', fewer messages
-g<width>x<height> page size in pixels | -r<res> pixels/inch resolution
-sDEVICE=<devname> select device | -c quit (as the last switch)
| exit after last file
-sOutputFile=<file> select output file: - for stdout, |command for pipe,
embed %d or %ld for page #
Input formats: PostScript PostScriptLevel1 PostScriptLevel2 PDF
Available devices:
x11 x11alpha x11cmyk x11mono deskjet djet500 laserjet ljetplus ljet2p
ljet3 ljet4 cdeskjet cdjcolor cdjmono cdj550 pj pjxl pjxl300 bj10e bj200
bjc600 bjc800 faxg3 faxg32d faxg4 pcxmono pcxgray pcx16 pcx256 pcx24b pbm
pbmraw pgm pgmraw pgnm pgnmraw pnm pnmraw ppm ppmraw tiffcrle tiffg3
tiffg32d tiffg4 tifflzw tiffpack tiff12nc tiff24nc psmono bit bitrgb
bitcmyk pngmono pnggray png16 png256 png16m pdfwrite nullpage
Search path:
. : /usr/openwin/lib/X11/fonts/Type1 : /usr/openwin/lib/X11/fonts/Type3 :
/opt/AEgs/share/ghostscript/4.02 : /opt/AEgs/share/ghostscript/fonts
For more information, see /opt/AEgs/share/ghostscript/4.02/doc/use.txt.
Report bugs to ghost@aladdin.com; use the form in new-user.txt.
(the dashed lines are just to delimit the output from my email message)
This output comes from a version of ghostscript built for a Solaris system by someone other than myself. I don't know if this is the default set of devices you'll see on a Linux distribution or not.
The "available devices" say which devices you can use with gs. In this case the bubble jet 250 is not specifically listed (I suspect it would say bjc250, but I could be wrong), so I would (if I were using that particular printer) have to get the source and read the devices.txt file to find out if this printer is supported, either by its own driver or by one of the other drivers (perhaps the bjc600 supports it, for example).
This is the short explanation. To summarize, you'll need to familiarize yourself with Ghostscript and using lpr. If you're lucky and this printer is commonly supported by the various Linux distributions then you may already have this printer configured in the ghostscript you have installed on your box.
For information on Ghostscript you'll need to look at the Ghostscript FAQ at http://www.cs.wisc.edu/~ghost/gsfaq.html. Note that there are two versions of Ghostscript: Aladdin's and the GNU version. Aladdin's is a commercial product but it's free for personal use. If you're not planning on redistributing it then I recommend the Aladdin version.
Okay, that's all the good news. I just checked the devices list at http://www.cs.wisc.edu/~ghost/aladdin/devices.html and it doesn't list the Canon Color Bubble Jet 250. If this printer is supported it's either with a newer, unlisted driver or by one of the other drivers. You'll probably need to check the .txt files that come with the source, find the author of the Color Bubble Jet drivers and drop them a line to see if they know if this printer will work with one of the existing drivers.
Hope that helps point you in the right direction.
Michael J. Hammel, The Graphics Muse
re: problem mounting vfat filesystem
Jan,
My /etc/fstab contains this line:
/dev/hda4 /f: vfat defaults,umask=007,gid=101 1 1This mounts my dos directory at /f: ( to match when I boot NT ) it allows root, or anyone in the group 101 to read or write the directory. I set up the 101 group so I could say only people in that group could write to /f:
To allow everyone change it to defaults,umask=000
Scott Carlson
SMB Printing for users with spaces in their SMB username
In order to get SMB printing to work under Red Hat Linux 5.1 with my username (which has a single space in it), I made the following addition to the Red Hat print filter "smbprint", located in: /usr/lib/rhs/rhs-printfilters/smbprint
USER="`echo $usercmd | awk '{printf "%s %s", $2,
$3}'`"%$password
usercmd=""
(The above lines were inserted just prior to the last line
in the script, which on my
system was):
(echo "print -"; cat) | /usr/bin/smbclient "$share"
$password -E ${hostip:+-I} $hostip -N -P $usercmd
2>/dev/null
This has the effect of setting the USER variable to "User
Name"%password, where User Name is the name of the user as
passed in to the script in the $usercmd varible. AWK is used
to strip out the leading "-U" supplied as part of $usercmd
somewhere up the command chain.
This solution only works for usernames with a single space in them. A more complex and full-featured solution would deal with no spaces or multiple spaces, either way. In any case, I feel Red Hat should find a general solution to this and incorporate it in their next release.
Warren
P.S. Thanks for a great forum for sharing tips and tricks
for Linux. BTW, does Red Hat read these tips? I'd
appreciate it if someone would submit this bug to them for
fixing.
Generalized fix for SMB printing-- usernames w/spaces
Date: Wed, 07 Oct 98 06:38:02 -0800
From: vwdowns@bigfoot.com
I wrote you earlier about a bug in Red Hat 5.1's /usr/lib/rhs/rhs-printfilters/smbprint
I later realized a simple generalized solution, by looking at the source code in more detail. The lines I added before can be replaced with:
export USER="$user"%$password usercmd=""(Just prior to the last line which calls smbclient).
For a more full-featured fix, simply modify the setting of $usercmd to: 1. Replace references to $usercmd with references to $USER.
2. $USER should be set/exported conditionally as $usercmd is at present.
3. $usercmd should be removed entirely from usage.
The only reliable way to pass a username/password to smbclient is via the USER environment variable.
1. The environment variable will not be seen on the cmd line by someone running ps, thus not exposing your password accidentally.
2. User names/passwords passed on the command line cannot contain spaces. If you embed them in quotes, smbclient keeps the quotes instead of trimming them off, causing username/password mismatch on the server. If you leave off the quotes, normal command-line parsing separates the username/password into separate parameters, and only the first word of each will get used.
Anyone using Red Hat print-filters will want to fix this, just in case they ever decide to set up SMB printing and are stuck with spaces in their username/password (as I am).
Warren E. Downs
2 Cent Tip -- Netscape
we all use Netscape every now and then. Most people won't use it as mailreader since it is too bloated, and the UNIX mailreaders are generally much better.
Nevertheless, Netscape seems to create a directory nsmail in the user's home directory every time it starts and doesn't find it, even if mail is not used. This is annoying. Here's a trick which doesn't make this directory go away, but at least makes it invisible.
I didn't find a GUI equivalent to change this setting so you have to do the following:
Edit the file ~/.netscape/preferences.js and change all occurences of 'nsmail' to '.netscape'. The important thing here is, of course, the leading dot before 'netscape'.
Regards,
hjb
Cobol
I saw your request for help in the Linux Gazette re Cobol. I've been using AcuCobol for 2 years under Linux and I strongly recommend the product and the company.
I don't know the cost of the compiler because my company bought it - but email them and ask for a student copy - they can only refuse... They have a full development environment called 'AcuBench' which currently only runs only under Windows.
The amazing thing about AcuCobol is that programs compiled on one platform will run totally unchanged on another machine - I tend to develop under Windows but install at clients sites on Linux. I hope this has been helpful.
Regards
John Leach
Piped Signatures
This has probably come up before, but the "more fun with pipes" thing in issue 33 reminded me of it.
Have a different signature appear in your emails every time you send one.
Create a subdrectory in your home called .signatures and copy your .signature file into it under a visible name. delete your .signature file and create a pipe in its place using
mkfifo .signatureCreate a script which simply "cat"s each of the files in the .signatures directory out to the .signature pipe:
#!/bin/sh
while true
do
for SIGNATURE in ${HOME}/.signatures/*
do
# Cat each file out to the .signature and throw away any errors.
cat ${SIGNATURE} > ${HOME}/.signature 2> /dev/null
# This sleep seems to be required for Netscape to work properly
# I think buffering on the filesystem can cause multiple signatures
# to be read otherwise. I think the sleep allows Netscape to see
# the End Of File.
sleep 1
done
done
Have this script kick off in the background every time you log in to the
system in your profile or xsession. Add more entries to the .signatures
directory and they automatically get used in your emails.
Issues and problems:
One issue might be blocking on the pipe. If there is no process feeding
signature files down the pipe, any programs which open the pipe can
appear to hang until something is written.
--
Colin Smith
Fixing backspace and delete Key in X-windows
If you have installed Red Hat version 5.0, you will have come across this problem. It will not take you long to realise that the backspace key (by this I mean the key above the ENTER key) and the delete key (by this I mean the key below the INSERT key and to the left of the END key) behaves differently on the console than on xterm in X-windows.
This is extremely irritating if like me you work in both the text-only console and xterm on X-windows. I set about to make sure that the behaviour is the same on both of them. In other words I want them to be standardise.
My solution is to make the backspace, delete and the pageup and pagedown key to behave exactly like they do in the text-only console.
The literature to do this is available on the web, however here I shall show those who have not done this yet, the steps needed to acheive this. A word of warning! This is dangerous. You can potentially stuff things up very very badly. In other words you must do this extremely carefully (and make lots of backups).
For your information I included the links below where you may obtain more details about this matter.
http://www.best.com/~aturner//RedHat-FAQ/ http://www.ibbnet.nl/~anne/keyboard.html
Okay now for the step by step instruction to fix the problem
Step one
* * * is to create a directory to store the original files
ksiew > mkdir original-terminfo-file ksiew > cd original-terminfo-file/ original-terminfo-file > pwd /home/ksiew/original-terminfo-file
Step two
* * * is to save the original copy of the xterm terminfo file
original-terminfo-file > locate xterm | grep terminfo | grep x/xterm /usr/lib/terminfo/x/xterm /usr/lib/terminfo/x/xterm-bold /usr/lib/terminfo/x/xterm-color /usr/lib/terminfo/x/xterm-nic /usr/lib/terminfo/x/xterm-pcolor /usr/lib/terminfo/x/xterm-sun /usr/lib/terminfo/x/xterms /usr/lib/terminfo/x/xterms-sun original-terminfo-file > cp /usr/lib/terminfo/x/xterm xterm.original original-terminfo-file > ls -al total 5 drwxrwxr-x 2 ksiew ksiew 1024 Oct 18 15:35 . drwxr-xr-x 24 ksiew ksiew 2048 Oct 18 15:31 .. -rw-rw-r-- 1 ksiew ksiew 1380 Oct 18 15:35 xterm.originalStep three
original-terminfo-file > infocmp xterm > xterm
original-terminfo-file > less ./xterm
# Reconstructed via infocmp from file: /usr/lib/terminfo/x/xterm
xterm|vs100|xterm terminal emulator (X11R6 Window System),
am, km, mir, msgr, xenl, xon,
cols#80, it#8, lines#65,
acsc=``aaffggjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~..--++\
054\054hhII00,
bel=^G, bold=\E[1m, clear=\E[H\E[2J, cr=^M,
csr=\E[%i%p1%d;%p2%dr, cub=\E[%p1%dD, cub1=^H,
cud=\E[%p1%dB, cud1=^J, cuf=\E[%p1%dC, cuf1=\E[C,
cup=\E[%i%p1%d;%p2%dH, cuu=\E[%p1%dA, cuu1=\E[A,
dch=\E[%p1%dP, dch1=\E[P, dl=\E[%p1%dM, dl1=\E[M,
ed=\E[J, el=\E[K, enacs=\E(B\E)0, home=\E[H, ht=^I,
ich=\E[%p1%d@, ich1=\E[@, il=\E[%p1%dL, il1=\E[L,
ind=^J,
is2=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l,
kbs=^H, kcub1=\EOD, kcud1=\EOB, kcuf1=\EOC,
kcuu1=\EOA, kend=\EOe, kent=\EOM,
kf1=\E[11~, kf10=\E[21~, kf11=\E[23~, kf12=\E[24~,
kf2=\E[12~, kf3=\E[13~, kf4=\E[14~, kf5=\E[15~,
kf6=\E[17~, kf7=\E[18~, kf8=\E[19~, kf9=\E[20~,
khome=\EO\200, kich1=\E[2~, kmous=\E[M, knp=\E[6~,
kpp=\E[5~, rc=\E8, rev=\E[7m, ri=\EM, rmacs=^O,
rmam=\E[?7l, rmcup=\E[2J\E[?47l\E8, rmir=\E[4l,
rmkx=\E[?1l\E>, rmso=\E[m, rmul=\E[m, rs1=^O,
rs2=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l\E<,
sc=\E7, sgr0=\E[m, smacs=^N, smam=\E[?7h,
smcup=\E7\E[?47h, smir=\E[4h, smkx=\E[?1h\E=,
smso=\E[7m, smul=\E[4m, tbc=\E[3k, u6=\E[%i%d;%dR,
u7=\E[6n, u8=\E[?1;2c, u9=\E[c,
Step fourChange from
kbs=^H, kcub1=\EOD, kcud1=\EOB, kcuf1=\EOC, kcuu1=\EOA, kend=\EOe, kent=\EOM,to
kbs=\177, kcub1=\EOD, kcud1=\EOB, kcuf1=\EOC, kcuu1=\EOA, kdch1=\E[3~, kend=\EOe, kent=\EOM,Step five
original-terminfo-file > mkdir ~/.terminfo original-terminfo-file > export TERMINFO=~/.terminfoIf you are using tcsh, type instead
original-terminfo-file > setenv TERMINFO ~/.terminfo
original-terminfo-file > export TERM=xterm
If you are using tcsh, type instead
original-terminfo-file > setenv TERM xterm
original-terminfo-file > su
password: opensesame
#| tic xterm
Step six#| cd ~/.terminfo/x/ #| cp xterm /usr/lib/terminfo/x/xterm #| cd ~ #| rm -rf .terminfo #| exit ksiew>Step seven * * * is to logoff and log back on (this is to get rid of the TERMINFO variable) and change the .Xdefaults file
ksiew> logout login: ksiew password: opensesame ksiew> less .XdefaultsOutput from less
xterm*VT100.Translations: #override\n\ <KeyPress>gt;Prior : scroll-back(1,page)\n\ <KeyPress>gt;Next : scroll-forw(1,page) nxterm*VT100.Translations: #override\n\ <KeyPress>gt;Prior : scroll-back(1,page)\n\ <KeyPress>gt;Next : scroll-forw(1,page)to the following lines
xterm*VT100.Translations: #override\n\
<KeyPress>gt;Prior : string("\033[5~")\n\
<KeyPress>gt;Next : string("\033[6~")
nxterm*VT100.Translations: #override\n\
<KeyPress>gt;Prior : string("\033[5~")\n\
<KeyPress>gt;Next : string("\033[6~")
*VT100.Translations: #override \
<Key>gt;BackSpace: string(0x7F)\n\
<Key>gt;Delete: string("\033[3~")\n\
<Key>gt;Home: string("\033[1~")\n\
<Key>gt;End: string("\033[4~")
*ttyModes: erase ^?
That's it! Save the .Xdefaults file and now you can start X-windows and
the backspace key, the delete key, the pageup key and the pagedown key
will work just like in the text-only console window.
Steven
Creating bzgrep Program
If you have ever used zgrep on gzip-textfiles then you would have realise what a wonderful it is. The program zgrep allows you to grep a textfile even if the text file is compressed in gzip format. Not only that it can also grep a uncompress textfile. For example if you have the following directory
testing > ls -al total 2086 drwxrwxr-x 2 ksiew ksiew 1024 Oct 18 11:07 . drwxr-xr-x 24 ksiew ksiew 2048 Oct 18 11:00 .. -rwxrwxr-x 1 ksiew ksiew 1363115 Oct 18 11:01 cortes.txt -rwxrwxr-x 1 ksiew ksiew 172860 Oct 18 11:01 lost_world_10.txt.gz -rwxrwxr-x 1 ksiew ksiew 582867 Oct 18 11:00 moon10a.txtThen if you are looking for the word "haste",
testing > zgrep -l haste * cortes.txt lost_world_10.txt.gz moon10a.txtTells you that "haste" is in all three files.
Now if you compress a textfile using the famous bzip2 compress program, you have a problem.
testing > bzip2 cortes.txt testing > ls -al total 1098 drwxrwxr-x 2 ksiew ksiew 1024 Oct 18 11:12 . drwxr-xr-x 24 ksiew ksiew 2048 Oct 18 11:12 .. -rwxrwxr-x 1 ksiew ksiew 355431 Oct 18 11:01 cortes.txt.bz2 -rwxrwxr-x 1 ksiew ksiew 172860 Oct 18 11:01 lost_world_10.txt.gz -rwxrwxr-x 1 ksiew ksiew 582867 Oct 18 11:00 moon10a.txt testing > zgrep -l haste * lost_world_10.txt.gz moon10a.txtWhat happen now is that zgrep no longer recognise the file cortes.txt.bz2 as a compress text file.
What we need is a new program bzgrep which can recognise bzip2 compress text files.
The best way to create bzgrep file is to modify the existing zgrep file.
testing > locate zgrep /usr/bin/zgrep /usr/man/man1/zgrep.1 testing > su password: opensesame #| cp /usr/bin/zgrep /usr/local/bin/bzgrepThe bzgrep file is a copy of zgrep file can contain this text.
We cannot change the last few lines to the following
res=0
for i do
if test $list -eq 1; then
bzip2 -cdf "$i" | $grep $opt "$pat" > /dev/null && echo $i
r=$?
elif test $# -eq 1 -o $silent -eq 1; then
bzip2 -cdf "$i" | $grep $opt "$pat"
r=$?
else
bzip2 -cdf "$i" | $grep $opt "$pat" | sed "s|^|${i}:|"
r=$?
fi
test "$r" -ne 0 && res="$r"
done
exit $res
Now the bzgrep file is a program that will be able to grep bzip2 compressed textfiles. BUT there is a problem.
bzgrep program WILL NOT recognise ordinary textfiles or gzip compress textfiles. This is a major problem! It means you have to compress all your textfiles with bzip2 in order to use bzgrep program.
Luckily there is always a solution in Linux. All we have to do is alter the program to be more choosy on which decompression program to use. ie. Do it uses gzip -cdfq or bzip2 -cdf
Now change the last few lines again to resemble this
res=0
for i do
case "$i" in
*.bz2 )
if test $list -eq 1; then
bzip2 -cdf "$i" | $grep $opt "$pat" > /dev/null && echo $i
r=$?
elif test $# -eq 1 -o $silent -eq 1; then
bzip2 -cdf "$i" | $grep $opt "$pat"
r=$?
else
bzip2 -cdf "$i" | $grep $opt "$pat" | sed "s|^|${i}:|"
r=$?
fi ;;
* )
if test $list -eq 1; then
gzip -cdfq "$i" | $grep $opt "$pat" > /dev/null && echo $i
r=$?
elif test $# -eq 1 -o $silent -eq 1; then
gzip -cdfq "$i" | $grep $opt "$pat"
r=$?
else
gzip -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${i}:|"
r=$?
fi ;;
esac
test "$r" -ne 0 && res="$r"
done
exit $res
Finally, this is the contents of a working bzgrep program.
Steve
Re: Linux on PalmPilot
In a previous message, dino jose says:Actually, you don't run Linux on the PalmPilot itself (although there is a project to do so - I don't know much about that however). You run Linux on your PC and transfer data files between the Linux system and the Pilot. You still run the same programs you normally would *on* the PalmPilot - it's just that you can transfer these programs and their data file to the Pilot using tools on Linux.
Hi... Mike, I read your article about the Linux in palm pilot.Its very intersting.Iam kind of new in LINUX platform! Because Iam so curious about Linux. I bought a palm pilot 111 the new version of palm with 2meg of memory.the main problem is, I don't know where to get the Linux operating system that it runs on palm pilot 111 the newer version. what about the HOW TO LINUX DOCUMENTATION FROM from its official site? Once I get this software do I run this in Linux operating system then transfer this to palm 111? Iam kind novice in Linux. If you could help me.I would gladly appreciated. Thanks a lot....
Don't let using Linux confuse you. You use Linux in the same way you use Microsoft Windows - it runs on your PC to do word processing or spreadsheets or whatever. You then pass data files back and forth the the Pilot using special tools.
If you want to try out a program that helps transfer files back and forth you can try my XNotesPlus. Its a sticky notes program that will allow you do backups of your Pilot to your local hard disk and will transfer the Address database from the Pilot to be used in doing some simple printing of envelopes. You can download the program from http://www.graphics-muse.org/xnotes/xnotes.html. You will also need to get the PilotLink software that I described in the article you read. XNotesPlus uses PilotLink to do the actual data transfers to and from the Pilot.
Hope this helps.
Michael J. Hammel, The Graphics Muse
Red Hat 5.1 + Acrobat Reader 3.01 HOWTO
Some people I know went nuts trying to install Acrobat Reader 3.01 as a helper app in Netscape, as shipped with Red Hat Linux 5.1. Here's how I've done it:
1. Download Acrobat Reader 3.01 from ftp.adobe.com. Let the installer script install the whole thing under /usr/local/Acrobat3.
2. Create the following shell script: /usr/local/Acrobat3/bin/nsacroread
#!/bin/sh
unset LD_PRELOAD
exec /usr/local/Acrobat3/bin/acroread $* >$HOME/.nsacroread-errors
2>&1
3. Don't forget to make this script executable:
# chmod 755 /usr/local/Acrobat3/bin/nsacroread
4. If the directory /usr/local/lib/netscape doesn't already exist,
create
it.
5. Copy (exactly) the following two files into this directory.
mailcap:
#mailcap entry added by Netscape Helper
application/pdf;/usr/local/Acrobat3/bin/nsacroread -tempFile %s
mime.types:
#--Netscape Communications Corporation MIME Information
#Do not delete the above line. It is used to identify the file
type.
#
#mime types added by Netscape Helper
type=application/pdf \
desc="Acrobat Reader" \
exts="pdf"
Note: You can do without the last two steps and instead configure the helper apps with the Edit >> Preferences menu of Netscape. This will create similar .mailcap and .mime.types files in the user's home dir. But IMHO the first method is best because this way you can configure Acrobat Reader for all users at once.
Cheers,
Louis-Philippe Brais
2 $.25 tips
1. I was having some real problems with Netscape (3.04 Gold) the other day. No matter what I did, I could not get the helpers to work. Somewhere in the back of my mind, I knew that they had worked in the past, but I couldn't see anything that I'd changed. A few messages on various newsgroups turned on the lights: I had upgraded my Bash to 2.0.0--and this version has a bug in it. Expressions of the form ((..) .. ) are interpreted as arithmetic expressions, rather than nested sub-shells. Upgrading to 2.02.1(1) was almost painless and fixed the Netscape problem.
To get 2.02.1(1) go to the gnu site (www.gnu.org) and follow the links to the software sections. The new software should compile out of the box (it did for me). One problem I had was that the install script put the new binaries in /usr/local/bin, and since I had my old versions in /usr/bin they weren't found. A quick mv solved that.
2. For a number of years I've been struggling trying to read the results of color-ls on my xterm screens. A number of the colors (green and blue) were just too bright to read. I didn't want to turn down the brightness of my monitor...so I mostly just squinted. For some reason I was looking at the XTerm.ad file, and noticed that the colors could be adjusted! The XTerm.ad file should be located in /usr/lib/X11/app-defaults (or something similar). It is read each time a new xterm start up and sets various options. If you look near the end of this file you'll see a number of definitions for the VT100 colors. I changed:
*VT100*color2: green3to
*VT100*color2: green4and
*VT100*color6: cyan3to
*VT100*color6: cyan4Like magic, the colors are darkened and I can read the results. If you don't want to fool with your global default file, you could also just add the entries to your ~/.Xresources file.
--
Bob van der Poel
S3 Virge/DX and XFree
I had a S3 Virge/DX, and couldn't get it working well in XFree. This made me very mad since there is a specific XFREE_S3V (S3 virge server).
I used a borrowed Xaccel, but it made me feel guilty real quick. :) So I decided that I need to get XFree configured well, and then ditch Xaccel. I found that xfree86config can not be well used to configure a Virge.
Here are the modelines I use for a mid-range 17 inch monitor @ 16bpp using the SVGA server. *WARNING* If this blows up your monitor/card, It's not my fault, although it shouldn't.
Modeline "640x480" 31.5 640 680 720 864 480 488 491 521 ModeLine "640x480" 31.5 640 656 720 840 480 481 484 500 -HSync -VSync Modeline "640x400" 36 640 696 752 832 480 481 484 509 -HSync -VSync Modeline "800x600" 40 800 840 968 1056 600 601 605 628 +hsync +vsync Modeline "800x600" 50 800 856 976 1040 600 637 643 666 +hsync +vsync Modeline "800x600" 60.75 800 864 928 1088 600 616 621 657 -HSync -VSync # Modeline "1024x768" 85.00 1024 1032 1152 1360 768 784 787 823 Modeline "1024x768" 85.00 1024 1052 1172 1320 768 780 783 803 # Modeline "1152x864" 85.00 1152 1240 1324 1552 864 864 876 908 Modeline "1152x864" 85.00 1152 1184 1268 1452 864 880 892 900This cured me of using Xaccel, and should cure your S3 Virge blues. P.S. A S3 Virge can go up to 1600x1000?
Andy
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