Calling a perl script as a shell command

Question

I want to call my perl script as a command from command line. Example lets say I have a perl file like following

#!/usr/local/bin/perl -w
@args =("mvn","package");
    system(@args) == 0
    or die "system @args failed"

I right not call this using package.pl

I tried doing the following

#!/bin/sh
  eval 'exec /bin/perl –x -S $0 ${1+"$@"}'
    if 0; 
#!/usr/local/bin/perl -w
@args =("mvn","package");
    system(@args) == 0
    or die "system @args failed"

and then name the file 'package' .Do chmod on package

When I try to run package, then I get the error "Can't open perl script []x:No such file or directory

Can someone please point me out , as to how to do this properly??

Thanks

Neeraj

You need to be using double quotes in your eval, not single quotes. — Rafe Kettler
– Rafe Kettler, Commented Apr 1, 2011 at 7:14
Your perl file doesn't need to end in .pl: Perl doesn't care. Just use #!/usr/local/bin/perl -w at the top of a file called package. File name suffixes are really just a Dos/Windows thing — Adrian Pronk
– Adrian Pronk, Commented Apr 1, 2011 at 7:21
Where really is your perl executable? /bin/perl or /usr/local/bin/perl? — Francisco R
– Francisco R, Commented Apr 1, 2011 at 8:07
@Rafe Kettler, Single quotes are fine if /bin/sh is really sh or compatible with sh (like bash). — ikegami
– ikegami, Commented Apr 1, 2011 at 18:30

tadmc · Accepted Answer · 2011-04-01 12:52:52Z

2

Change to the name you want to use and make it executable:

cp package.pl package
chmod +x package

Run it:

package

or:

./package

answered Apr 1, 2011 at 12:52

tadmc

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1 Comment

Axeman Over a year ago

or alias it, if you're on *NIX.

Francisco R · Accepted Answer · 2011-04-01 10:29:03Z

2

Changed single quotes to double quotes and escaped inner double quotes. Also, there seems to be some problem with paths. Try calling your script with absolute path. I tried adding "./" and it worked:

#!/bin/sh

echo "This is shell"

eval "exec /usr/bin/perl -x -S ./$0 ${1+\"$@\"}"
   if 0;

#!/usr/bin/perl -w
print "This is Perl\n";

edited Apr 1, 2011 at 10:29

answered Apr 1, 2011 at 8:11

Francisco R

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