I could split $ENV{PATH} and look in every directory it contains, but that would be a lot of work.

Would it?

use File::Spec::Functions qw( catfile path );
my $foo_available = grep -x catfile( $_, 'foo' ), path;

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(Note grep in scalar context — it returns the number of matches.)

Makeshifts last the longest.

In reply to Re: checking external program for availability? by Aristotle
in thread checking external program for availability? by bcrowell2

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