And you think that a programmer who

  1. Invokes a non-existant command,
  2. wrapped in scalar,
  3. as the fourth argument to substr

And gets the target substring replaced by nothing--without a warning that the fourth parameter was undefined--is going to ignore the 

Can't exec "foo": No such file or directory at a.pl line 14.

[download]

warning and throw their hands in the wondering what went wrong?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
RIP an inspiration; A true Folk's Guy

In reply to Re^4: Use of uninitialized value in substr by BrowserUk
in thread Use of uninitialized value in substr by BrowserUk

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