Shell Programming and Scripting

Okay, I went ahead and change shell

Now I am in csh:

Code:

%echo $SHELL
/bin/csh
%setenv LD_LIBRARY_PATH /bin
%echo $LD_LIBRARY_PATH
/bin
%echo '#!/bin/csh' > test.sh
%echo 'setenv LD_LIBRARY_PATH /tmp:$LD_LIBRARY_PATH' >> test.sh
%cat test.sh
#!/bin/csh
setenv LD_LIBRARY_PATH /tmp:$LD_LIBRARY_PATH
%chmod 755 test.sh
%./test.sh
%echo $LD_LIBRARY_PATH
/bin

Now the parent shell and the subshell from the script is the same and it still doesn't work. The $LD_LIBRARY_PATH should have /tmp:/bin

Thanks

Dear casau,
You didn't get my point.

when you execute any script it invokes its own shell. The environments in the child shell doesn't return back to the parent shell.

If you do want to change the LD_LIBRARY_PATH for all always in the shell you are working on, you have to source the script.

There are many ways of doing that and the most common way is put the commands in your shell's profile which are .bashrc,.kshrc,.cshrc respectively for bash,ksh and csh shell exists in the home directory.

or even you can put the commands in any file, and source it. just like you were doing initially in login file.

so, if you are on bash shell, do this

Code:

$ echo 'export LD_LIBRARY_PATH=/tmp:/bin' > my_env
$ . my_env
$ echo $LD_LIBRARY_PATH
$ /tmp:/bin
$

if on csh,

Code:

% echo 'setenv LD_LIBRARY_PATH /tmp:/bin' > my_env
% source my_env
% echo $LD_LIBRARY_PATH
% /tmp:/bin
%

Hope you get it.

Hi all......
please help me out..........
I have data/lib and newdata/lib those are two different utilities.........
if i set the lib of one utility the another one utility is not running fine.............
For example if i use export LD_LIBRARY_PATH=/abc/data/lib this should execute in data/apps folder.like this newdata also should run in newdata/apps folder
the newdata/lib files are not connecting to server so server is not running properly...........
please help me i want to run both lib folders at a time...............
plz give response as soon as possible