Hi your "command" is executed. it changes the environment of the shell you spawn with qx(); but after this statement your shell dies and it seems that nothing happend..
it is simply impossible to change the environment of a parent when you're a child. maybe you can add this line to your shell configuration file. (.bash_profile or .zshrc ...) Regards Martin On 9:05:15 17/04/2008 <[EMAIL PROTECTED]> wrote: > I want to execute "export CCASE_NO_FILE_HEADER=yes" command in Perl > script. > If I run this command on bash prompt then it is executing properly but > if I try to execute this command through perl script then it is not > executing at all > > How should I achieve this . is there any another way. > > Please help. > > Regards, > Irfan > > -----Original Message----- > From: Kenneth Wolcott [mailto:[EMAIL PROTECTED] > Sent: Thursday, April 17, 2008 12:05 AM > To: beginners@perl.org > Subject: Fwd: setting unix command through perl script > > Oops -- did reply and instead of reply-all :-( > > ---------- Forwarded message ---------- > From: Kenneth Wolcott <[EMAIL PROTECTED]> > Date: Wed, Apr 16, 2008 at 11:33 AM > Subject: Re: setting unix command through perl script > To: [EMAIL PROTECTED] > > > Agreed that the parent process in which perl was invoked will not be > changed > by the perl script. > > What is the overall objective? > > Try to do everything you need to do inside the perl script, or > everything > you need to do outside the perl script. > > HTH, > Ken Wolcott > > > On Wed, Apr 16, 2008 at 5:31 AM, Martin Barth <[EMAIL PROTECTED]> > wrote: > > > i think this is not possible. > > > > if you start a new process (shell) it gets the environment of its > parent > > process. but if you manipulate the environment in a child the > parent will > > not notice this.. > > > > for example > > > > $ bash > > $ export FOO=BAR > > $ echo $FOO > > BAR > > $ exit > > $ echo $FOO > > > > > > Regards Martin > > > > > > On 14:20:18 16/04/2008 <[EMAIL PROTECTED]> wrote: > > > I tried the line : $ENV{CCASE_NO_FILE_HEADER} = 'yes'; > > > > > > But still the value is not getting set. > > > > > > Please help. > > > > > > Regards, > > > Irfan > > > > > > Project Lead > > > TSINDIA - Production Line > > > Individual Software Solutions - UMO > > > T-Systems India Private Limited, Pune > > > Telephone: +91-20-30245000/25605000 (Extn: 5271) > > > Mobile: +91 9822 854 227 > > > Fax: +91-020 25674090 > > > Internet: http://www.t-systems.com > > > > > > > > > -----Original Message----- > > > From: Rodrick Brown [mailto:[EMAIL PROTECTED] > > > Sent: Wednesday, April 16, 2008 5:04 PM > > > To: Sayed, Irfan > > > Cc: beginners@perl.org > > > Subject: Re: setting unix command through perl script > > > > > > On Wed, Apr 16, 2008 at 7:05 AM, <[EMAIL PROTECTED]> > > > > wrote: Hi All, > > > > > > > > > > > > > > > > I need to execute the "export CCASE_NO_FILE_HEADER=yes" > > > > command through Perl script. > > > > > > > > > > > > > > > > What I did is qx(export CCASE_NO_FILE_HEADER=yes); but still > > > > the value for CCASE_NO_FILE_HEADER is not getting set to > > > > "yes" > > > > > > > > > > > > Regards, > > > > > > > > Irfan > > > > > > > > > > > > > > > > > > > > > > With Perl you can get and set environment variables through using > %ENV > > > ie. $ENV{FOO} = 'bar' > > > > > > -- > > > [ Rodrick R. Brown ] > > > http://www.rodrickbrown.com > > > http://www.linkedin.com/in/rodrickbrown > > > > > > -- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > http://learn.perl.org/ > > > > > > -- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > http://learn.perl.org/ > > > > > > > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > http://learn.perl.org/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
