bash provides many functionalities that sh does not, for instance "process substitution" that you use in your code sample.
You need to output to two files, and paste those, or you need to play dirty tricks, like
I wonder if any body can help me with a command i am struggling with. I have a file with around 400 lines in, in a program i have it pulls out each line at a time so that data from the line can be cross referenced with another file. If it finds a match it pulls out a ocde from the second file, this... (5 Replies)
I'm attempting to create a Perl script that will:
Take the contents of the usernames.tmp file
(usernames.tmp is created from an awk one-liner ran against /etc/passwd)
Take one line at a time and pass it to the su command as a users name.
This should go on until there is no more name to... (10 Replies)
Problem with Paste command :)
Hi All,
i need small suggestion in my below script...
i have output in .txt format like below
file1.txt
01111111
02222222
03333333
file2.txt
230125
000012
000002
now i want to merge both the file in xls or csv formate
now i am using the below... (2 Replies)
Hi Unix gurus
I have a file containing 2 coloumns. I would like to do a script which reads the lines and executes a command like this:
command <field1> parameters <field2> some more parameters
Please let me know how you would do this without AWK, SED or any other mini language (for special... (5 Replies)
I have a file which contains 3 fields separated by tabs example
andrew kid baker
I need to swap kid and baker using cut and paste commands how is this to be done?
Thanks (3 Replies)
Hello. I've made a simple script which asks the user to input a hash and then runs a command that replaces the variable $hash with what the user inserted. The ting is that when the programm asks for input I can't paste anything there..! any clues?? :wall: (8 Replies)
Hi,
I want to use paste command in a loop that does it every 6 files. My sample files are like the ones below.
20010101.txt 20010106.txt 20010111.txt
20010116.txt 20010121.txt 20010126.txt
20010131.txt 20010205.txt 20010210.txt
20010215.txt 20010220.txt 20010225.txt
20010302.txt... (4 Replies)
there are lot of files where in mostly all the file contains 2columnsAl,1
Ail,13
Al,3
Al,1
Al,3
Al,2
Al,3
Al,1
Al,1
Al,1
My requirement is i wanted only the second column of every file as a column ony in the base file... I used paste command... but it is not helping as I'm using while... (7 Replies)
Hai ,
When i use paste command in command prompt its giving expected output but not in the script. Below is the example.
$cat file
1
2
3
$cat file1
4
5
6
$paste -d ':' file file1
1:4
2:5
3:6
but when i used the same command in script its giving the output as below :
1
2
3 (3 Replies)
Discussion started by: Subbu123
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)