I'd suggest you use a module to call the external command, not backticks. There are several modules that give you the ability to capture and redirect a command's STDOUT and STDERR: Capture::Tiny, IPC::Run3, and IPC::Run, the latter two even allow for you to feed custom STDIN to the command. Then you won't have to deal with the additional layer of the shell and you can do everything directly in Perl. Also, shell interpolation can introduce security holes.

Another thing, which is a matter of taste: I usually don't redirect my program's STDOUT and STDERR. If I want a logfile, I open it and write to it specifically (print $logfh "whatever\n";), and if my program produces any other output I let whoever is calling my Perl script deal with it (cron, a daemon runner, the user on the terminal, etc.).

In reply to Re: How to handel sqlplus error in perl script. by Anonymous Monk
in thread How to handel sqlplus error in perl script. by Ankur_kuls

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.