This is most likely because you did not clean up $ENV{PATH} to be secure. Most likely, if your Unix installation is a standard installation, the following should work at the top of your script:

$ENV{PATH} = '/bin:/usr/bin:/usr/local/bin';

[download]

If that doesn't work, you need to find out in which directory the ping executable lives, and put the name of that directory into $ENV{PATH} instead.

In reply to Re^3: using -T doesn't work by Corion
in thread using -T doesn't work by tcf03

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