Shell script with arguments within perl script

Ruby
1

Hi! I wanted to run the system command with in Perl script to execute
shell script with argument. I need to know the correct syntax for the
arguments.

Ex.)
#/opt/bin/perl

system(“shellscript.sh” , );

I am getting syntax error. If i get rid of the arg1-3 then the shell
script runs just fine.

thanks.

2

In message [email protected], jay
writes:

Hi! I wanted to run the system command with in Perl script to execute
shell script with argument. I need to know the correct syntax for the
arguments.

Hmm.

I know it’s easy to mistake perl for ruby, what with both of them being
sorta newfangled computer stuff, but…

#/opt/bin/perl

system(“shellscript.sh” , );

I am getting syntax error. If i get rid of the arg1-3 then the shell
script runs just fine.

Well, yes.

And if this were a perl list, you may rest assured I’d tell you how to
expand @ARGV for your purposes.

-s

3

On May 3, 2007, at 5:22 AM, jay wrote:

script runs just fine.

thanks.

–
Posted via http://www.ruby-forum.com/.

in Ruby:

system( command, arg, arg, arg)

Returns true if command runs successfully, false otherwise.

There is also:

exec( command, arg, arg, arg)

Exact behavior is platform dependent. One might presume that since
Ruby borrows a fair amount from Perl, that there may be something
similar going on.

4

On Thu, May 03, 2007 at 05:22:54AM +0900, jay wrote:

script runs just fine.
Are you using commas exactly as shown? If so, that’s probably the
problem. Try this instead:

system(“foo.sh”, “bar”, “baz”, “qux”);

. . . where bar, baz, and qux are your arguments. You could also simply
do something like one of the following:

system(“foo.sh bar baz qux”);

my $foo = “foo.sh”;
my @args = qw(bar baz qux");
system("$foo @args");

my @command_and_args = qw(foo.sh bar baz qux);
system("@command_and_args");

In each case, assuming the use of system() is the only thing on that
line of the program, the parentheses are optional.

You are using the strict and warnings pragmas – right? You should
always include the following two lines at the beginning of any Perl
script while working on it to help with debugging and good programming
practice:

use strict;
use warnings;

You should also make use of perldoc, which should be installed on your
system. With the -f option, the perldoc command can be used to look up
information about a specific function. In this case, you can learn more
about how system() works with the following commmand, for instance:

perldoc -f system

I hope that helps.

5

On Thu, May 03, 2007 at 05:22:54AM +0900, jay wrote:

Hi! I wanted to run the system command with in Perl script to execute
shell script with argument. I need to know the correct syntax for the
arguments.

Oh, one other thing – you’re asking this of a Ruby community, not a
Perl community. Since this was apparently posted via the forum, rather
than the mailing list or newsgroup, I suspect what you actually want
is the PerlMonks website:

http://www.perlmonks.org

6

On May 3, 2007, at 6:31 AM, Chad P. wrote:

http://www.perlmonks.org

–
CCD CopyWrite Chad P. [ http://ccd.apotheon.org ]
Brian K. Reid: “In computer science, we stand on each other’s feet.”

www.perlmonks.org indeed!
Good place for good Perl.

7

On 5/2/07, Chad P. [email protected] wrote:
When there are people behaving strangly in nice restaurants one can
suspect that they are Critics (sp?) from Michelin or whatever
Guide(1).
Chad I guess you just got us our first “Toque” :wink:

Cheers
Robert

(1) Although that is probably never the case.

8

On Thu, May 03, 2007 at 05:47:56PM +0900, Chad P. wrote:

(1) Although that is probably never the case.

Uh, what? What does a hat have to do with this?

I think you lost me.

Never mind. I get it – the purpose of the metaphor just slipped by me
for a moment there.

Thanks for the compliment.

9

On Thu, May 03, 2007 at 01:49:16PM +0900, Robert D. wrote:

On 5/2/07, Chad P. [email protected] wrote:
When there are people behaving strangly in nice restaurants one can
suspect that they are Critics (sp?) from Michelin or whatever
Guide(1).
Chad I guess you just got us our first “Toque” :wink:

Cheers
Robert

(1) Although that is probably never the case.

Uh, what? What does a hat have to do with this?

I think you lost me.