Hello,
If you want to catch the output of a command, use:
$data = qx/$cmd/
The status you where getting back when calling system indicated success
of your execution with 0.
The return value of 0 is true for shell (mostly), it is platform
dependent I suppose, so you have to turn you Perl logic around.
Often see Perl scripts end with exit(0); for communication with the
shell executing the perl script in question.
jonasbn
On 8/9-2005, at 23.42, neelay thaker wrote:
Hi,
I'm trying to use the output of a grep command in a shell script.
If I do-
$cmd = "grep 'abc' ./*";
$status = system $cmd;
Then $status always turns out to be 0, even if I use invalid
arguments with grep.
If the result of grep is not empty, I want to perform some action and
if it is empty, I want to do something else.
How can I get the output of grep into a string variable in the Perl
script?
Any help will be highly appreciated.
Thanks.
Neelay.
