Unale to permanently set LD_LIBRARY_PATH

cheeta05r · 08-22-2007, 07:35 PM

Below are the commands I use to set the library path for Matlab libraries. Every time I boot up the system I have to enter these commands. How do I export them permanently? I am running Fedora 7.

[cheeta05r@localhost ~]# export LD_LIBRARY_PATH=/usr/local/matlab74_sv/sys/os/glnx86:$LD_LIBRARY_PATH
[cheeta05r@localhost ~]# export LD_LIBRARY_PATH=/usr/local/matlab74_sv/bin/glnx86:$LD_LIBRARY_PATH

Thanks in advance.

reddazz · 08-22-2007, 07:55 PM

Add those commands to your ~/.bash_profile. After that logout and back in again.

cheeta05r · 08-22-2007, 08:10 PM

That didn't work. I entered those two lines in my Bash_profile as seen below.

/usr/share/doc/bash-3.2/startup-files/Bash_profile

Code:

# Startup file for bash login shells.
#
default_dir=/usr/local/lib/

if [ -n "$PS1" ]; then
	PS1='\u@\h(\#)\$ '
	IGNOREEOF=3
fi

LOGIN_SHELL=true

# If the user has her own init file, then use that one, else use the
# canonical one.
if [ -f ~/.bashrc ]; then
	. ~/.bashrc
elif [ -f ${default_dir}Bashrc ]; then
	. ${default_dir}Bashrc;
fi

export LD_LIBRARY_PATH=/usr/local/matlab74_sv/sys/os/glnx86:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/usr/local/matlab74_sv/bin/glnx86:$LD_LIBRARY_PATH

reddazz · 08-22-2007, 08:50 PM

The file you are supposed to put the commands is a hidden file located in your home directory (~ is a shortcut for your home directory). If you want the variable to be global, you can put the commands in /etc/profile or create a file (e.g. matlab.sh) in /etc/profile.d, enter the commands in there and make the file executable.

cheeta05r · 08-22-2007, 10:12 PM

So I added the lines to the hidden file located in my home directory as seen below. This didn't work. To test it I've logged out and logged back in, then try running the executable file requiring the libraries.

This really seems like something that shouldn't be this hard. Thanks in advance for helping me out with this.

[cheeta05r@localhost ~]# ls -a
.bash_profile

Code:

# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
	. ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH
unset USERNAME

export LD_LIBRARY_PATH=/usr/local/matlab74_sv/bin/glnx86:$LD_LIBRARY_PATH

export LD_LIBRARY_PATH=/usr/local/matlab74_sv/sys/os/glnx86:$LD_LIBRARY_PATH

reddazz · 08-23-2007, 03:30 AM

If you have added the lines to ~/.bash_profile, then logged out and back in again, what is the output of doing

Code:

$echo $LD_LIBRARY_PATH

cheeta05r · 08-23-2007, 08:07 PM

Neither of the below commands produced any result.

Code:

[cheeta05r@localhost ~]# $echo $LD_LIBRARY_PATH
[cheeta05r@localhost ~]# echo $LD_LIBRARY_PATH

[cheeta05r@localhost ~]#

cheeta05r · 08-30-2007, 08:16 PM

BTW by putting the below lines in .bashrc I was able to get it to work.

export LD_LIBRARY_PATH=/usr/local/matlab74_sv/sys/os/glnx86:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/usr/local/matlab74_sv/bin/glnx86:$LD_LIBRARY_PATH