Further info: I modified the "it's alive" to print out $! also and it's getting "No such process", but the process does exist and hasn't switched to any other user: 
$ zt
cmd running: 18859
killing cmd: 18859
It's alive!!!!! (No such process)
It's alive!!!!! (No such process)
It's alive!!!!! (No such process)

$ ps aux
...
alan     18858  1.0  0.4   5660  1932 pts/2    S+   20:30   0:00 /usr/
+bin/perl ./zt
alan     18859  0.0  0.1   3184   492 pts/2    S+   20:30   0:00 sleep
+ 10

[download]

In reply to Re: kill won't kill the process I opened by useopenid
in thread kill won't kill the process I opened by useopenid

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.