I have a question about setenv in perl. I have to use setenv to operate some command... so I use %ENV. but it can not operate.. I use perl in linux. For more details, I type 'setenv test TURE' then when I type 'echo $test' linux print TURE. Also I can find 'test=TURE' when I type 'printenv' in linux. I want to use all of these command through perl script. How can I do it?? I test below some command but it didn't work.. Can you help me?? I want to set new envirmoent value in linux, when I type 'printenv'. thank you monks