about export(enviroment variable set) command

[jase]

Hi,
I have a question about export command. Under unix, I try to make a file set enviroment variable. the command export under PS can work, but in my file cant work.
for example, under ps, "export bs=2" can set bs as enviroment variable, but in my file put this command does not work. but i put the command to the .bashrc file, it works. why?
special thanks for your help!!

[beck]

u can try function putenv( ... )

[zlw]

if you execute a script just by type its name,a new shell will be forked and execute your file,the enviroments modified by the sub shell won't affect your orignal shell.so you should execute your script with "source" or "." command,for example,". your-script".(this work under linux/bash,i think unix will work too)

[netmare]

when u execute a script,there a new shell will be forked to do this job,and then ur env var will set under this shell,and when ur script done,the shell will exit,and like '.profile','.bashrc' is an init script,it will be execute when u login with this uid,and it will effect to ur shell which forked at this time.