Shell - run shell commands transparently within perl

- NAME
- SYNOPSIS
- DESCRIPTION

- OBJECT ORIENTED SYNTAX

- AUTHOR

# NAME

Shell - run shell commands transparently within perl

# SYNOPSIS

See below.

# DESCRIPTION

      Date: Thu, 22 Sep 94 16:18:16 -0700
      Message-Id: <9409222318.AA17072@scalpel.netlabs.com>
      To: perl5-porters@isu.edu
      From: Larry Wall <lwall@scalpel.netlabs.com>
      Subject: a new module I just wrote

Here's one that'll whack your mind a little out.

        #!/usr/bin/perl

        use Shell;

        $foo = echo("howdy", "<funny>", "world");
        print $foo;

        $passwd = cat("</etc/passwd");
        print $passwd;

        sub ps;
        print ps -ww;

        cp("/etc/passwd", "/etc/passwd.orig");

That's maybe too gonzo. It actually exports an AUTOLOAD to the current package (and uncovered a bug in Beta 3, by the way). Maybe the usual usage should be

        use Shell qw(echo cat ps cp);

Larry

If you set $Shell::capture_stderr to 1, the module will attempt to capture the STDERR of the process as well.

If you set $Shell::capture_stderr to -1, the module will discard the STDERR of the process.

The module now should work on Win32.

     Jenda

There seemed to be a problem where all arguments to a shell command were quoted before being executed. As in the following example:

     cat('</etc/passwd');
     ls('*.pl');

really turned into:

     cat '</etc/passwd'
     ls '*.pl'

instead of:

      cat </etc/passwd
      ls *.pl

and of course, this is wrong.

I have fixed this bug, it was brought up by Wolfgang Laun [ID 20000326.008]

Casey

## OBJECT ORIENTED SYNTAX

Shell now has an OO interface. Good for namespace conservation and shell representation.

     use Shell;
     my $sh = Shell->new;
     print $sh->ls;

Casey

# AUTHOR

Larry Wall

Changes by Jenda@Krynicky.cz and Dave Cottle <d.cottle@csc.canterbury.ac.nz>

Changes and bug fixes by Casey West <casey@geeknest.com>

Shell - run shell commands transparently within perl