And this is why it's not working. Your login shell spawns a child shell to run this script, and the child environment is discarded when the script exits; the parent shell (your login shell) is unaffected.
You should do as fpmurphy suggests and execute the script by sourcing it in:
The "dot" command means "run in the current process environment". So the script will be run as if you typed each command within the current shell. This probably means you don't want "exit 0" in your script. :-P
hi i want to write a shell script to set environment variables . But i am not been able to set that for the current shell instead i have to spawn a new shell. Is there a way to set the env variable for the current shell using shell script in bash shell ?
Thnx (2 Replies)
Hi,
I am using the HP-UX machine of version B.11.23. My bashprofile looks like this :
# @(#)B11.23_LR
# Default user .profile file (/usr/bin/sh initialization).
#! /usr/bin/bash
# Set up the terminal:
if
then
eval ` tset -s -Q -m ':?hp' `
else
eval ` tset -s -Q `
fi
stty erase "^H"... (0 Replies)
Hi,
I want to get the value of the env varables using the ksh script. All the env variables are stored in a file.
Eg.
file1
$INPATH
$OUTPATH
myscirpt:
for name in `awk { print $1 } file1`
do
cd $name
done
i'm getting the error like $INPATH not found.
in the same script... (1 Reply)
I am newbie on Unix system and seek help for updating env variables. The condition is like this:
On Unix server, I log in as oracle user (this is the super for database on Unix), I type > env
all envirnment variables show up. I saw one variable DBA_LIST contains a few email addreses. I need... (2 Replies)
i have a file that i need to edit and replace a single value with another. so i have two variables, $oldvalue and $newvalue but below doesn't work:
ed file.txt << EOF
,s/$oldversion/$newversion/g
wq
EOFi presume it's the $ that is the issue since it's actually special to ed. any suggestions?... (1 Reply)
Hi All,
I have script and it's hardcoded the script ca invoke in user home dir and logs will be redirected to home dir of user.
how to make the same script will be invoke from /usr/bin with out chg the logs and other functions path from /user/homedir .
code is below: pls check how to... (1 Reply)
Hi there,
I need urgent help with a small program that is run via shell script. Unfortunately I only understand the bare basics of shell scripting and can't figure out how to do this.
We have a program that tests the connection between 3 servers. I have a script that lets the program run on... (15 Replies)
I have perl script and in the first line we are invoking .sh script to set ENV variables.
e..g
eval '. $envfile; exec $PERL -S $0 "$@"'
I want to change some of the env variables while the program is running and I am settging it like this ..
$ENV{ORACLE_HOME}=trim($oraclehome);... (1 Reply)
Hi ,
I have installed oracle in Solaris machine and unable to set the env variable. I tried to put the env variable in .dtprofile file but didn't help. So everytime I login in need to run the command and export the variable. Kindly suggest where I am doing wrong.Pls excuse as I am not too... (2 Replies)
Discussion started by: Rossdba
2 Replies
LEARN ABOUT OSX
env
Env(3pm) Perl Programmers Reference Guide Env(3pm)NAME
Env - perl module that imports environment variables as scalars or arrays
SYNOPSIS
use Env;
use Env qw(PATH HOME TERM);
use Env qw($SHELL @LD_LIBRARY_PATH);
DESCRIPTION
Perl maintains environment variables in a special hash named %ENV. For when this access method is inconvenient, the Perl module "Env"
allows environment variables to be treated as scalar or array variables.
The "Env::import()" function ties environment variables with suitable names to global Perl variables with the same names. By default it
ties all existing environment variables ("keys %ENV") to scalars. If the "import" function receives arguments, it takes them to be a list
of variables to tie; it's okay if they don't yet exist. The scalar type prefix '$' is inferred for any element of this list not prefixed by
'$' or '@'. Arrays are implemented in terms of "split" and "join", using $Config::Config{path_sep} as the delimiter.
After an environment variable is tied, merely use it like a normal variable. You may access its value
@path = split(/:/, $PATH);
print join("
", @LD_LIBRARY_PATH), "
";
or modify it
$PATH .= ":.";
push @LD_LIBRARY_PATH, $dir;
however you'd like. Bear in mind, however, that each access to a tied array variable requires splitting the environment variable's string
anew.
The code:
use Env qw(@PATH);
push @PATH, '.';
is equivalent to:
use Env qw(PATH);
$PATH .= ":.";
except that if $ENV{PATH} started out empty, the second approach leaves it with the (odd) value "":."", but the first approach leaves it
with ""."".
To remove a tied environment variable from the environment, assign it the undefined value
undef $PATH;
undef @LD_LIBRARY_PATH;
LIMITATIONS
On VMS systems, arrays tied to environment variables are read-only. Attempting to change anything will cause a warning.
AUTHOR
Chip Salzenberg <chip@fin.uucp> and Gregor N. Purdy <gregor@focusresearch.com>
perl v5.16.2 2012-10-11 Env(3pm)