Beefy Boxes and Bandwidth Generously Provided by pair Networks
"be consistent"
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Why not:

$pid = "/var/log/syslog.pid"; unless (stat($pid)) { print "$pid not running\n"; }

Is there a reason why running stat on the pid file is a Bad Idea? I'm not suggesting it's the best way, mind. I'm just wondering if it's acceptable.

Updated: Thanks, bluto. I'd totally let that evacuate my brain. Cat the pid file to get the process id for which to grep in ps. Buh.

So, just to run mine into the ground:

$pid = "/var/run/syslogd.pid"; if (stat($pid)) { open(PID, "< $pid"); my $id = <PID>; chomp $id; if($id) { print "$id running\n"; } else { print "$pid not running\n"; } close PID; } else { print "$pid not running\n"; }

... but it's just for my own excercise at this point. The stat is pointless, since I could just as easily bail if it dies on opening the file in the file handle.



--
Amatuers discuss tactics. Professionals discuss logistics.

And... my cat's breath smells like cat food.

In reply to Re: How best to see if syslogd is running? by BravoTwoZero
in thread How best to see if syslogd is running? by Plankton

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, 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, 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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others having an uproarious good time at the Monastery: (3)
    As of 2021-03-07 19:33 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      My favorite kind of desktop background is:











      Results (122 votes). Check out past polls.

      Notices?