Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: assistance requested (sed related)
Top Forums UNIX for Advanced & Expert Users assistance requested (sed related) Post 302163757 by Franklin52 on Saturday 2nd of February 2008 08:15:45 AM
Old 02-02-2008
Reborg,

You forget to place a colon before "/bin/bash" and it changes all lines and that's not what the OP wants.
A little fit of your the line:

Code:
sed '/.*sh$/s#:[^:][^:]*$#:/bin/bash#' /etc/passwd

A solution with awk should looks like:

Code:
awk 'BEGIN{FS=OFS=":"}$7 ~ /.*sh$/{$7="/bin/bash"}1' /etc/passwd

Regards
 

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

need assistance: sed and repeating patterns

hi, I need to write a command with sed to find all the lines in a file that contain patterns of three or more characters that repeat once and put them inside perenthezes. I cannot tell sed what pattern to look for. it should find repeated patterns automatically. example:... (1 Reply)
Discussion started by: metalwarrior
1 Replies

2. Shell Programming and Scripting

Help requested for a script with sed

Hello Folks, I would very much appreciate if I could get help/suggestions on a particular sed usage. I have to write a script to take version info from a version file, compute the image name, print error if the image does not exist. The version file looks like below: " # # version.cfg #... (3 Replies)
Discussion started by: fatimap
3 Replies

3. Shell Programming and Scripting

Help on sed requested

Hi I have a problem to resolve, I think sed is the best option, and I am not successful yet. Have a UNIX file which has records as of the 2 character state codes like NY NJ PA DE From the file I need to create this as a variable in the same script or another file -... (7 Replies)
Discussion started by: snair2010
7 Replies

4. Shell Programming and Scripting

Need assistance with sed

Hi All, I need your assistance, I would like to replace all lines beginning with the word "begin" with the below text: Device | IPMB0-A | IPMB0-B Board Address |Sent SentErr %Errr |Sent SentErr ... (9 Replies)
Discussion started by: Dendany83
9 Replies

5. UNIX for Advanced & Expert Users

Need assistance with sed

Hi All, I need your assistance, I would like to replace all lines beginning with the word "begin" with the below text: Device | IPMB0-A | IPMB0-B Board Address |Sent SentErr %Errr |Sent SentErr ... (10 Replies)
Discussion started by: Dendany83
10 Replies

6. Shell Programming and Scripting

sed newbie scripting assistance

Howdy folks, I'm trying to craft a log file summarisation tool for an application that creates a lot of duplicate entries with only a different suffix to indicate point of execution. I thought I'd gotten close but I'm clearly missing something. Here's a genericized version: A text_file... (3 Replies)
Discussion started by: mthespian
3 Replies

7. UNIX for Dummies Questions & Answers

Sed/command assistance

Hello all, I need some help and education creating a script. Basically I have a file with a list of numbers.. 2125554444 2124445555 I need to put them into a format that looks like this.... UQ-V8.1,2125554444,hdaudio UQ-V8.1,2124445555,hdaudio Any help would be greatly... (6 Replies)
Discussion started by: jay11789
6 Replies

8. UNIX for Dummies Questions & Answers

Sed/command assistance

Hello, I'm attempting to play with sed commands again... I have a file named test1 with numbers...ex:5551234567 I run this sed on the file... cat test1 | sed 's/^/homeDnModify "/g' | sed 's/$/" "" 3/g' >test2 Im hoping it will look like this... homeDnModify "551235" "4567" ""... (5 Replies)
Discussion started by: jay11789
5 Replies

9. Shell Programming and Scripting

sed assistance

Hello everyone. I am trying to replace sprintf(buffer, "{\"id\":1,\"method\":\"mining.update_block\",\"params\":}\n", coinid, blockhash); with sprintf(buffer, "{\"id\":1,\"method\":\"mining.update_block\",\"params\":}\n", coinid, blockhash); this is the code I was trying but is... (9 Replies)
Discussion started by: crombiecrunch
9 Replies

LEARN ABOUT MINIX

chsh

CHSH(1)                                                            User Commands                                                           CHSH(1)

NAME

       chsh - change login shell

SYNOPSIS

       chsh [options] [LOGIN]

DESCRIPTION

       The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change
       the login shell for her own account; the superuser may change the login shell for any account.

OPTIONS

       The options which apply to the chsh command are:

       -h, --help
           Display help message and exit.

       -R, --root CHROOT_DIR
           Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.

       -s, --shell SHELL
           The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell.

       If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new
       value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks.

NOTE

       The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser,
       and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh
       in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell
       back to its original value.

FILES

       /etc/passwd
           User account information.

       /etc/shells
           List of valid login shells.

       /etc/login.defs
           Shadow password suite configuration.

SEE ALSO

       chfn(1), login.defs(5), passwd(5).

shadow-utils 4.5                                                    01/25/2018                                                             CHSH(1)
All times are GMT -4. The time now is 04:34 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy