A few issues:

  1. <acronym title="Service Side Includes">SSIs</acronym> with "exec" enabled can be dangerous, especially if you (asusming it's your machine) are not the only one with the ability to create SSI documents on the web server.
  2. Does the user "nobody" (or whoever the web server runs as) have permission to modify the "num.dat" file?
  3. In the "num.html" case, perhaps the issue is that the file and graphics are cached by the web browser.

Another option might be to use a dynamically generated graphic from\ a <acronym>CGI</acronym> script (this is a common example for people learning CGI).

In reply to Re: SSI PERL wisdom needed by rrwo
in thread SSI PERL wisdom needed by ozzy

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