chop takes off the last character of the string oblivious to what it is.
chomp takes off $/ ("\n" by default) if it exists as the last character, also known as the input record seperater

See perldoc -f chomp, vs perldoc -f chop for more information. chop returns what was taken off, chomp returns how many was taken off, (how many elements it effected). chomp is most often used when reading from <STDIN>.

perl -e'$_="foo\n*"; chop; chomp; print;' ## Removes the *, then removes the terminating $/ (\n), prints foo
perl -e'$_="foo\n*"; chomp; chop; print;' ## There is no terminating $/ (\n) chomp returns 0, chop removes *, prints foo\n


Evan Carroll
www.EvanCarroll.com

In reply to Re: chop vs chomp by EvanCarroll
in thread chop vs chomp by xoombot

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