Many shells have a specific command-line option to run single commands. Looking at various resources that Google gives, I can't see one for VxWorks, but you might have better luck asking on a VxWorks site. All the hints I found were about running within the shell, not feeding a command from the outside.

It could be that the VxWorks shell reads commands from its standard input. If it does then you could pipe commands into it, for example:
open(my $Vx, '|-', 'windsh') or die "windsh; $!";
print $Vx "Some command\n";
close $Vx;

[download]
See also perlipc
Alternatively you might be able to write the commands to a script file and:
my @output = qx(windsh < scriptfile);

[download]
But note, this is just something you might try, chances are that VxWorks does not support what you want to do.

In reply to Re: Perl to run VxWorks shell Commands by cdarke
in thread Perl to run VxWorks shell Commands by dchan

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.