Sponsored Content
Top Forums Shell Programming and Scripting how read specific line in a file and write it in a new text file? Post 302598698 by vel4ever on Wednesday 15th of February 2012 06:40:25 AM
Old 02-15-2012
Thank you.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

read specific text from a log file

Hi guys I need to retrieve the values in BOLD that I have mentioned in the below log file. I want to store those values in a variable, preferably the same name as the column name in the log file. if you paste the below mentioned log file in a notepad and remove the word wrap.. u will get a... (4 Replies)
Discussion started by: ragha81
4 Replies

2. Shell Programming and Scripting

read space filled file and replace text at specific position

Hi I have a spaced filled file having records like below: What I want is to read line having RT3 at position 17-19 then go to position 2651 check the 18 characters (might be space filled till 18 characters). This position should have a... (6 Replies)
Discussion started by: COD
6 Replies

3. Shell Programming and Scripting

Adding specific text and spaces to each line in a text file

Hi, I wanted to add specific text to each row in a text file containing three rows. Example: 0 8 7 6 5 5 7 8 9 0 7 9 7 8 9 0 1 2 And I want to add a 21 at the beginning of the first row, and blank spaces at the beginning of the second two rows. To get this: 21 0 8 7 6 5 5 7 8... (4 Replies)
Discussion started by: hertingm
4 Replies

4. Shell Programming and Scripting

Read Write byte range/chunk of data from specific location in file

I am new to Unix so will really appreciate if someone can guide me on this. What I want to do is: Step1: Read binary file - pick first 2 bytes, convert from hex to decimal. Read the next 3 bytes as well. 2 bytes will specify the number of bytes 'n' that I want to read and write... (1 Reply)
Discussion started by: Kbenipel
1 Replies

5. Shell Programming and Scripting

Read file from nth line to specific character

Hi, I want to read the file from nth line (where n is an integer) to until I encounter @ char. Can any one please help me how to do this? Thanks. (3 Replies)
Discussion started by: laalesh
3 Replies

6. Shell Programming and Scripting

write specific line number in file

dear all, i need your advice i have sample script like this: testing.sh for i in {1..10} do echo testing $i done but i forgot create "#!/bin/bash" in above "for" so i want output will like this testing.sh #!/bin/bash for i in {1..10} do echo testing $i done (2 Replies)
Discussion started by: zvtral
2 Replies

7. Shell Programming and Scripting

How to read particular line in file from specific column?

Hi...friends.... I want to create inventory...information for that I need to read some specific row say 2nd row from 1st 3 column and and write data with particular file used, I have some more column also but I need only 3 column data of first entry after header I attached sample file..those... (12 Replies)
Discussion started by: nex_asp
12 Replies

8. Shell Programming and Scripting

To read specific line from a file

Hi, I have a ldif file like below: version: 1 dn: cn=Test Group,ou=Applications,dc=xyz,dc=com objectClass: groupOfUniqueNames objectClass: top cn: Test Group uniqueMember: uid=abc,ou=People,o=xyz,o=Corporate,dc=xyz,dc=com dn: cn=Test Sub Group,cn=Test... (4 Replies)
Discussion started by: saurau
4 Replies

9. Shell Programming and Scripting

Extract specific line in an html file starting and ending with specific pattern to a text file

Hi This is my first post and I'm just a beginner. So please be nice to me. I have a couple of html files where a pattern beginning with "http://www.site.com" and ending with "/resource.dat" is present on every 241st line. How do I extract this to a new text file? I have tried sed -n 241,241p... (13 Replies)
Discussion started by: dejavo
13 Replies

10. Shell Programming and Scripting

How to read all data after a specific string from a text file ?

Hi, I have a file(input.txt) and trying to format as output.txt. See the attached file format. Note: This is a windows file (DOS format) and the commands are also going to execute on windows. Basically I am trying to capture all the data in between Local Group Memberships and Global Group... (10 Replies)
Discussion started by: Monoj2014
10 Replies
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)
All times are GMT -4. The time now is 03:36 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy