Using Exec command with parameters

dgarry has asked for the wisdom of the Perl Monks concerning the following question:

Hi, I'm new to using perl and completly lost.. I'm trying to use the exec command in the following manner exec 'test.sh -param1 $p1 -param2 $p2' or die "Can not run test.sh"; but my variables are coming out as being blank when I echo the incoming parameters in my test.sh script ... Can anyone help??? Thanks David

Comment on Using Exec command with parameters

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Re: Using Exec command with parameters by gargle (Chaplain) on Sep 12, 2005 at 09:32 UTC
Hi, Could you post the code please? It would help us to understand the problem a little better. However, passing $p1, $p2 in a single quoted string will never work because the variables will never be expanded to their real values. Try to use double quotes and use a syntax like: `exec '/bin/echo', 'Your arguments are: ', @ARGV;` [download] -- if ( 1 ) { $postman->ring() for (1..2); }	[reply] [d/l]
Re: Using Exec command with parameters by marto (Cardinal) on Sep 12, 2005 at 09:28 UTC
Hi dgarry, perldoc is your friend: `exec '/bin/echo', 'Your arguments are: ', @ARGV;` Also I notice this is your first post. If you have not already done so I would suggest having a read at the Guide to the Monastery. Hope this helps Martin	[reply] [d/l]
Re: Using Exec command with parameters by davidrw (Prior) on Sep 12, 2005 at 12:59 UTC
are you sure that exec is what you want and not system? Note that exec will never return ....	[reply]
Re: Using Exec command with parameters by sgifford (Prior) on Sep 12, 2005 at 15:40 UTC
Your code is using single quotes, which won't interpolate variables (so you should be seeing `$p1` and `$p2` as you parameters instead of blank). Either use double-quotes, or else use the multi-argument form of `exec`.	[reply] [d/l] [select]