08-26-2008
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have a file which is:-
1 6 4 8 2 3
2 1 9 3 2 1
3 3 5 6 3 1
4 9 7 8 2 3
I would like to sort from field $2 to field $6 for each of the line to:-
1 2 3 4 6 8
2 1 1 2 3 9
3 1 3 3 5 6
4 2 3 7 8 9
I came across this Arrays on example 26-6. But it is much complicated. I am... (7 Replies)
Discussion started by: ahjiefreak
7 Replies
2. Shell Programming and Scripting
Hi,
I'm trying to read a file containing lines with spaces in them.
The inputfile looks like this
------------------------------
Command1 arg1 arg2
Command2 arg5 arg6 arg7
-------------------------------
The shell code looks like this...
lines=`awk '{ print }' inputfile`
... (2 Replies)
Discussion started by: a-gopal
2 Replies
3. Shell Programming and Scripting
I'm trying to reformat some tide information into a useable format and failing.
Input file is....
4452 CHENNAI (MADRAS)
13°06'N, 80°18'E India East Coast 01 June 2009 UT(GMT)
Data Area 3. Indian Ocean (northern part) and Red Sea to Singapore
01/06/2009
00:00 0.7 m
00:20 0.7 m
00:40... (3 Replies)
Discussion started by: garethsays
3 Replies
4. UNIX for Dummies Questions & Answers
Hi Everyone,
I have an input file in the following format:
score.file1.txt
contig00045 length=566 numreads=19 1047 0.0
contig00055 length=524 numreads=7 793 0.0
contig00052 length=535 numreads=10 607 e-176
contig00072 length=472 numreads=46 571 e-165... (8 Replies)
Discussion started by: Fahmida
8 Replies
5. Shell Programming and Scripting
I would like to write a script to extend this command to a general case:
BEGIN {s_0=0;n_0=0}{n_0++;s_0+=($51-$1)^2}END {print sqrt(s_0/n_0)}
i.e. so that
BEGIN {s_0=0;n_0=0}{n_0++;s_0+=($51-$1)^2}END {print sqrt(s_0/n_0)}
BEGIN {s_1=0;n_1=0}{n_1++;s_1+=($51-$2)^2}END {print... (3 Replies)
Discussion started by: chrisjorg
3 Replies
6. UNIX for Dummies Questions & Answers
Hi, I am also a newbie in awk and trying to find solution of my problem.
I have one reference file 1.txt with 2 columns and I want to search other 10 files (a.txt, b.txt......h.txt each with 5 columns) corresponding to the values of 2nd column from 1.txt. If the value from 2nd column from 1.txt... (0 Replies)
Discussion started by: bioinfo
0 Replies
7. Shell Programming and Scripting
Hi, I have two files: atom.txt and g.txt
atom.txt has multiple patterns but I am showing only two patterns each ending with ENDMDL:
ATOM 1 N SER A 1 35.092 83.194 140.076 1.00 0.00 N
ATOM 2 CA SER A 1 35.216 83.725 138.725 1.00 0.00 C
TER
ENDMDL
ATOM 1 N SER A 1 35.683 81.326 139.778 1.00... (11 Replies)
Discussion started by: bioinfo
11 Replies
8. Shell Programming and Scripting
Hi, I am also a newbie in awk and trying to find solution of my problem.
I have one reference file 1.txt with 2 columns and I want to search other 10 files (a.txt, b.txt......h.txt each with 5 columns) corresponding to the values of 2nd column from 1.txt. If the value from 2nd column from 1.txt... (33 Replies)
Discussion started by: bioinfo
33 Replies
9. Shell Programming and Scripting
Hi
I am a newbie starting bash and I have a simple need to return the result of an operation from awk to bash. basically I want to use awk to tell me if "#" exists in a string, and then back in bash, i want to do an IF statement on this return in order to do other things. In my bash shell I... (2 Replies)
Discussion started by: oahmad
2 Replies
10. UNIX for Dummies Questions & Answers
Hi!
I have a new problem with awk, this time I think is because I'm using it in bash and I don't know how to put the valor of the variable in awk. Here is the code:
#!/bin/bash
for i in 1 2 3 4 5
do
a=$i
b=$
awk '$1>=a&&$1<=b {print $1,$2,$3}'>asdf test... (3 Replies)
Discussion started by: florpi
3 Replies
LEARN ABOUT DEBIAN
syslogout
SYSLOGOUT(8) System Manager's Manual SYSLOGOUT(8)
NAME
syslogout - modular centralized shell logout mechanism
DESCRIPTION
syslogout is a generic approach to enable centralized shell logout actions for all users of a given system in a modular and centralized way
mostly aimed at avoiding work for lazy sysadmins. It has only been tested to work with the bash shell.
It basically consists of the small /etc/syslogout shell script which invokes other small shell scripts having a .bash suffix which are con-
tained in the /etc/syslogout.d/ directory. The system administrator can drop in any script he wants without any naming convention other
than that the scripts need to have a .bash suffix to enable automagic sourcing by the /etc/syslogout script.
For shell sessions, the contents of /etc/syslogout.d/" will be sourced by every user at logout if the following lines are present in his
$HOME/.bash_logout:
if [ -f /etc/syslogout ]; then
. /etc/syslogout
fi
If used for X sessions it is advisable to include the former statement into the Xreset script of the X display manager instead to prevent
that closing of an terminal emulator window yields unexpected results in your running X session if your X11 terminal emulator is using a
login shell. Be sure then to run it under the user-id of the X session's user. See the example files in /usr/share/doc/syslogout/ for
illustration.
Users not wanting /etc/syslogout to be sourced for their environment can easily disable it's automatic mechanism. It can be disabled by
simply creating an empty file called $HOME/.nosyslogout in the user's home directory using e.g. the touch(1) command.
Any single configuration file in /etc/syslogout.d/ can simply be overridden by any user by creating a private $HOME/.syslogout.d/ directory
which may contain a user's own version of any configuration file to be sourced instead of the system default. It's names have just to
match exactly the system's default /etc/syslogout.d/ configuration files. Empty versions of these files contained in the $HOME/.syslo-
gout.d/ directory automatically disable sourcing of the system wide version.
Naturally, users can add and include their own private scripts to be automagically executed by /etc/syslogout at logout time.
OPTIONS
There are no options other than those dictated by shell conventions. Anything is defined within the configuration scripts themselves.
SEE ALSO
The README files and configuration examples contained in /usr/share/doc/syslogout/ and the manual page for bash(1), xdm(1x),
xdm.options(5), and wdm(1x). Recommended further reading is everything related with shell programming.
If you need a similar mechanism for executing code at login time check out the related package sysprofile(8) which is a very close compan-
ion to syslogout.
BUGS
syslogout in its current form is mainly restricted to bash(1) syntax. In fact it is actually a rather embarrassing quick and dirty hack
than anything else - but it works. It serves the practical need to enable a centralized bash configuration until something better
becomes available. Your constructive criticism in making this into something better" is very welcome. Before i forget to mention it: we
take patches... ;-)
AUTHOR
syslogout was developed by Paul Seelig <pseelig@debian.org> specifically for the Debian GNU/Linux system. Feel free to port it to and use
it anywhere else under the conditions of either the GNU public license or the BSD license or both. Better yet, please help to make it into
something more worthwhile than it currently is.
SYSLOGOUT(8)