fssize=$(df -k $fs | grep -v Filesystem | awk \'{print $2}\');

Same as:

fssize=$(df -k --output=size $fs);

(but probably a little slower that this last line...)

've tried and backticks and qx// and IPC::Run, and even open() but they all seem to have the same limitation - when I pass the hash element as the command to be executed it gets interpreted one line at a time

thus forget about the for loop, forget about the bash array and do all in one line

 perl -e 'my $foo=`df -k --output=size /tmp /var /home`; $foo=~s/\n//g
+; print "$foo\n";' 
returns --> 1K-blocks   12345  67890 1234567890

[download]

You can now manipulate the string $foo directly in perl

In reply to Re: Running blocks of shell script from within perl script by pvaldes
in thread Running blocks of shell script from within perl script by lilgreen

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.