Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: remove a path from PATH environment variable
Top Forums Shell Programming and Scripting remove a path from PATH environment variable Post 302361809 by madhu84 on Wednesday 14th of October 2009 06:53:34 AM
Old 10-14-2009
Here is the out put

Code:
$ echo $PATH
/usr/local/bin:/usr/bin:test/rmve:/usr/games
$ echo $rmv
test/rmve
$ PATH=$(echo $PATH | sed -e 's;:\?'$rmv';;' -e 's;'$rmv':\?;;')
$export PATH
$ echo $PATH
/usr/local/bin:/usr/bin:test/rmve:/usr/games

There is no error reported


if I put the line in a script and execute as you suggested then the output is

Code:
$ . ./test.sh
+ + sed -e s;:\?test/rmve;; -e s;test/rmve:\?;;
+ echo /usr/local/bin:/usr/bin:test/rmve:/usr/games
PATH=/usr/local/bin:/usr/bin:test/rmve:/usr/games

the test.sh has

Code:
set -x
PATH=$(echo $PATH | sed -e 's;:\?'$rmv';;' -e 's;'$rmv':\?;;')
export PATH

Last edited by madhu84; 10-14-2009 at 08:00 AM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

How does the PATH and MANPATH environment variable get set?

Hi, How does the PATH and MANPATH environment variable get set? I want to add "/opt/SUNWspro/bin" to the search path for all the users. Where can I access this variable. I know in my home directory, depend on which shell I use, there are files such as .profile and .cshrc which I can edit to... (3 Replies)
Discussion started by: vtran4270
3 Replies

2. Shell Programming and Scripting

Path Environment Variable

Hi..... I'm kind of new to c programming in Unix...need help here. Supposed to write a source code to support Path environment variable for my programming assignment for Spring semester. but i'm kind of stuck. Could anyone out there assist me? prompt> /bin/ls My program could output... (3 Replies)
Discussion started by: tancy
3 Replies

3. Shell Programming and Scripting

:: in PATH environment variable

whats the meaning of :: colon in PATH environment? /usr/local/bin:/usr/bin:/usr/local/gnu/bin::.:/usr/local/bin:/usr/bin:/usr/local/gnu/bin:/usr/local/bin and whats the meaning of // in PATH ? (1 Reply)
Discussion started by: gfhgfnhhn
1 Replies

4. Shell Programming and Scripting

problem in getting the path of environment variable set in bashrc in my shell script

hi all i have joined new to the group. i have set an variable in my bashrc file. .bashrc PROGHOME=/home/braf/braf/prog export PROGHOME but while using it in my shell script its path is not taken and i had to explicitly give the export command to set the path. in my script... (8 Replies)
Discussion started by: krithika
8 Replies

5. UNIX for Dummies Questions & Answers

Path Environment

How do we change path environment? (2 Replies)
Discussion started by: mehmetned
2 Replies

6. Shell Programming and Scripting

one liner to extract path from PATH variable

Hi, Could anyone help me in writing a single line code by either using (sed, awk, perl or whatever) to extract a specific path from the PATH environment variable? for eg: suppose the PATH is being set as follows PATH=/usr/bin/:/usr/local/bin:/bin:/usr/sbin:/usr/bin/java:/usr/bin/perl3.4 ... (2 Replies)
Discussion started by: royalibrahim
2 Replies

7. Shell Programming and Scripting

Appending a path in user's PATH variable

Hello Folks, I want to append a path in user's PATH variable which should be available in current session. Background Numerous persons will run a utility. Aim is to add the absolute path of the utility the first time it runs so that next runs have the PATH in env & users can directly run... (6 Replies)
Discussion started by: vibhor_agarwali
6 Replies

8. Shell Programming and Scripting

Path a variable to sed that includes a path

Hi I'm trying to select text between two lines, I'm using sed to to this, but I need to pass variables to it. For example start="BEGIN /home/mavkoup/data" end="END" sed -n -e '/${start}/,/${end}/g' doesn't work. I've tried double quotes as well. I think there's a problem with the / in the... (4 Replies)
Discussion started by: mavkoup
4 Replies

9. Ubuntu

PATH environment variable

PATH is an environment variable. When I open a terminal say terminal 1 and set some path in PATH variable it gets set which I can see using ech $PATH. But when I open a new terminal say terminal 2 and fire echo $PATH why cannot I see the same output as seen in terminal terminal 1? Why the path... (4 Replies)
Discussion started by: rupeshkp728
4 Replies

10. Shell Programming and Scripting

Function to remove the directories from PATH variable

Hello, From the URL https://www.unix.com/shell-programming-scripting/121303-remove-path-path-environment-variable-2.html I got a function to remove the directories from a path. but looks like this isnt quite working.. i am also not able to post the comments in the thread as it is closed. ... (6 Replies)
Discussion started by: satishkumar432
6 Replies

LEARN ABOUT OPENSOLARIS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh,
       /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh,
       /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list.

       Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1).

FILES

       /etc/shells    list of shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.11							    20 Nov 2007 							 shells(4)
All times are GMT -4. The time now is 10:29 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy