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split actually takes a m// for it's first argument, not just a string. Try:
foreach my $pwd (split(/\\/,'\foo\foo1\foo2')) {
The reason it was failing with \\ was that in a string, the '\\' turns into a literal \ after interpolation. That single \ is then passed to the regex engine as the RE, which is invalid as \ is special in a RE.

In reply to Re: A problem with using the split command by Paladin
in thread A problem with using the split command by TASdvlper

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