Sponsored Content
Top Forums Shell Programming and Scripting Simple script to return environment variable Post 302298556 by rikxik on Wednesday 18th of March 2009 01:44:38 AM
Old 03-18-2009
It is doing what its expected to do. You need to do this:

Code:
#! /usr/bin/csh
set VAR_NAME=$1
eval echo \$$VAR_NAME

 

10 More Discussions You Might Find Interesting

1. 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

2. Shell Programming and Scripting

Setting environment variable on a remote solaris machine using shell script

Hi, I am trying to set environment variable on a remote machine. I want to do it by running a shell script Here's what I am doin rsh <remote-hostname> -l root "cd /opt/newclient; . ./setp.sh" In setp.sh, I have ############################# cd ../newlib; export... (1 Reply)
Discussion started by: eamani_sun
1 Replies

3. Shell Programming and Scripting

reading environment variable from awk script

Hi All, I am using SunSolaris machine. I need to get the value of environment variable from awk begin. Then use that value as the start number of a sequence and use that in my print statement. But it is not reading the value from environment variable. I have tried the following: ... (5 Replies)
Discussion started by: prashas_d
5 Replies

4. Shell Programming and Scripting

How to return a value of a variable from shell script to perl script

HI , Is there any way to return a value of variable from shell to perl script. Code: === Perl file my $diff1=system("sh diff.sh"); my $diff2=system("sh diff1.sh"); I need exit status of below commands i.e 0 and 1 respectively. Since in both the cases diff is working so system... (3 Replies)
Discussion started by: srkelect
3 Replies

5. Shell Programming and Scripting

Setting environment variable using shell script

Hi All, I'm trying to write an menu driven program to automate some functions which involve loging to multiple hosts. The hosts can differ for every use, so I thought I would use an config file to get the hostnames. Now I need to set those values in the config file to environment variable to... (6 Replies)
Discussion started by: arun_maffy
6 Replies

6. Shell Programming and Scripting

Retrieve the value of environment variable in shell script which called from crontab

There are two files one is shell script (sample.sh) and another is configuration file (sampl_conf.cfg) configuration file contains one variable $FTP_HOME. the value of this variable vaires for user to user. If user is say jadoo then value is /home/jadoo/ftp/, for user1 - /home/user1/ftp. The... (0 Replies)
Discussion started by: jadoo_c2
0 Replies

7. Shell Programming and Scripting

environment variable in shell script called through crontab

Please help me on below.. https://www.unix.com/shell-programming-scripting/141533-retrieve-value-environment-variable-shell-script-called-crontab.html#post302442024 I'm still here. I can still see you! (0 Replies)
Discussion started by: jadoo_c2
0 Replies

8. Shell Programming and Scripting

Source environment variable in script

Hi, I construct a bash script to finish some tasks. One of the task is to set up some environment variables. There is already one script file to complete the environment variables setting work. I am not able to know the detail of how to set these variables. So, I may just need to call this... (4 Replies)
Discussion started by: gofortime
4 Replies

9. Shell Programming and Scripting

Return variable value from a script running in background

I have a script which runs a script in the background. Now the script running in background returns some variable value and i want to catch return value in the parent script. e.g. Parent Script : #!/bin/bash ./Back.sh & pid=$! echo "a=$a" echo "b=$b" echo "d=$((a+b))" wait $pid ... (4 Replies)
Discussion started by: Shaishav Shah
4 Replies

10. Shell Programming and Scripting

How to change Linux Terminal environment variable in a perl or bash script?

Hi, I meet an problem that it cannot change Terminal environment variable in a perl or bash script. This change can only exist and become effective in script lifetime. But I want to make this change take effect in current opened Terminal. In our view, the thought seems to be impossible, As... (9 Replies)
Discussion started by: weichanghe2000
9 Replies
getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME
getusershell, setusershell, endusershell - get legal user shells SYNOPSIS
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as defined by the system manager in the file /etc/shells. If /etc/shells does not exist, the following locations of the standard system shells are used in its place: /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/pfsh /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 /usr/bin/sh /usr/bin/tcsh /usr/bin/zsh /usr/sfw/bin/zsh /usr/xpg4/bin/sh The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells. The setusershell() function rewinds the file or the list. The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells. RETURN VALUES
The getusershell() function returns a null pointer on EOF. BUGS
All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved. NOTES
Restricted shells should not be listed in /etc/shells. SunOS 5.11 1 Nov 2007 getusershell(3C)
All times are GMT -4. The time now is 11:01 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy