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Running Multiple Unix commands in qx

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# 1  
Old 05-27-2010
Running Multiple Unix commands in qx
Hi All,

Is there anything wrong with below syntax?

Code:
qx {perldoc -v ModuleName.pm | grep -i Description }

BTW, this question is related to Perl.

Thanks.
Last edited by jal_capri; 05-27-2010 at 01:14 PM..
# 2  
Old 05-27-2010
Code:
$ perldoc -f qx
       qx/STRING/
       qw/STRING/
               Generalized quotes.  See "Regexp Quote-Like Operators" in per-
               lop.

# 3  
Old 05-28-2010
Quote:
Originally Posted by jal_capri
Hi All,

Is there anything wrong with below syntax?

Code:
qx {perldoc -v ModuleName.pm | grep -i Description }

BTW, this question is related to Perl.

Thanks.
nope.
but try:

Code:
print qx {perldoc -v ModuleName.pm | grep -i Description }

or more perlish:

Code:
open DOC, "perldoc -v ModuleName.pm|" or die;
while (<DOC>) {
  print if /Description/;
}

there's a million ways, what are you trying to achieve?
# 4  
Old 05-28-2010
Or, even more perlish:
Code:
open my $PD, '-|', 'perldoc -v ModuleName.pm' or die "$!";
print grep { /description/i } <$PD>;
close $PD;

Nevermind that this won't work, as the -v switch tells perldoc to look up a Perl variable, not a module. And even more Perlish would be if you'd used one of the Pod::* modules yourself to convert the documentation.
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