How to use export in shell???

[dayananda.ms]

Hi All,

i written a small shell script the usese export command... but when i execute that script, my shell will exit???
Please find the code
temp.sh

echo the value exported by the shell is $var
var=newvalue
export var

#exec otherfilepathname

exec /home/abc.sh


abc.sh contains

echo "the value of $var"


when i execute temp.sh, my shell terminal will exit....

[burschik]

Don't use exec. Use "." or "sh" instead.

[dayananda.ms]

Hey hi,

I used .(dot), instead exec its working now... but what is the problem with exec???

[burschik]

"Exec" replaces the current shell with another program. It does not return.

[dayananda.ms]

Cool man... but once its exit the terminal. i reopened the new terminal, but at that time i am not able to print that variable, which i jave exported...what is reason for that??? do need to put it in .bashrc???

[burschik]

The export statement only affects the current session. If you want to have the variable available in all your sessions, you need to put the export statement in an init file, such as ".bashrc".