01-26-2009
I believe sudo has security problems with LD_LIBRARY_PATH and some other envrionment variables. According to the man page for sudo on 11.23 - it removes that environment variable.
The easiest way around that is to relink the executable file using the -L parameter, so that ld looks in the right path for libraries.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello,
I want to set some environment variables with this script:
ip=$@
echo Remote Computer: $ip
PERLDB_OPTS="CallKomodo=$ip:9000 RemotePort=$ip:9010 PrintRet=0"
export PERLDB_OPTS
PERL5LIB=/opt/komodo
export PERL5LIB
echo PERLDB_OPTS: $PERLDB_OPTS
echo PERL5LIB: $PERL5LIB
But it... (5 Replies)
Discussion started by: Gargamel
5 Replies
2. Shell Programming and Scripting
Hi all,
I am trying to set up some variables in a shell script. The variables contain values of various paths needed to run a java module. The problem is the variables dont seem to be setting at all.
here is what i am trying to do :
JAR_HOME=/home/was5/bdcms/scheduledjobs/lib
export... (6 Replies)
Discussion started by: rpandey
6 Replies
3. UNIX for Dummies Questions & Answers
I want the user to be able to commands as another user.. but when they do that.. I need them to have the environment variables of the other user. is this possible with sudo?
sudo -H -u user env
'env' is giving me the environment of the current user, not the user I want to run commands as.
... (1 Reply)
Discussion started by: julesdiane
1 Replies
4. Shell Programming and Scripting
Hi All
I'm attempting to automate the process of setting the DISPLAY environment variable when logging on (sourcing the .cshrc).
I have a mixture of linux and solaris servers and this comnand:
who -m | awk '{ print $6}' | tr -d '()'
seems to work on all the servers.
I want... (2 Replies)
Discussion started by: huskie69
2 Replies
5. UNIX for Dummies Questions & Answers
Hi
I am new to Solaris and was just given my id and need to setup my environment, what do i need to do to run certain commands without putting in the complete path.
How do I create my .profile, I do not see under my login?
Any help would be greatly appreciated. (5 Replies)
Discussion started by: sa_ken
5 Replies
6. UNIX for Dummies Questions & Answers
hi all,
I would appreciate if some one could explain me the difference between setting up the variables as shown below
HOME=${HOME:-"/home/user1"}
HOME=/home/user1 (1 Reply)
Discussion started by: SSSB
1 Replies
7. UNIX for Dummies Questions & Answers
#!/bin/bash
if ; then
ASS1_DATA_DIR=./
echo $ASS1_DATA_DIR
export ASS1_DATA_DIR
echo "data dir"
fi
if ; then
ASS1_OUTPUT_DIR=./
export ASS1_OUTPUT_DIR
fi
I want to create a new environment variable ASS1_DATA_DIR and ASS1_OUTPUT_DIR in bash and set them to the current... (4 Replies)
Discussion started by: bigubosu
4 Replies
8. Red Hat
Hi,
I was wondering about this question today,
After logging to a linux server (putty - ssh), I set environment variables like PATH etc.
When I launch a command as sudo, is the environment variables that were set applicable to the command launched as sudo also?
Please let me know what you... (2 Replies)
Discussion started by: jredx
2 Replies
9. UNIX for Dummies Questions & Answers
Hi all,
This is my first post here. I need to set up a few environment variables with a shell script. Some are hard-coded, but some should come from other commands or as input from the user. How do I do that?
For example, I need to export a variable as such:
export DISPLAY=127.0.0.1:8.0
... (2 Replies)
Discussion started by: exchequer598
2 Replies
10. Red Hat
I wish to setup LAMP environment. Amongst, I have successfully installed Linux 6.1. I am looking fwd to install - Apace Web Server, My Sql Database & PHP environment.
Say if I look for MySql, could see downloadable available in rpm format. But this must be copied over to Linux machine.
As... (2 Replies)
Discussion started by: videsh77
2 Replies
Env(3pm) Perl Programmers Reference Guide Env(3pm)
NAME
Env - perl module that imports environment variables as scalars or arrays
SYNOPSIS
use Env;
use Env qw(PATH HOME TERM);
use Env qw($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 v5.12.1 2010-04-26 Env(3pm)