chop VARIABLE
chop LIST
chop
Chops off the last character of a string and returns the character
chopped. It's used primarily to remove the newline from the end of an
input record, but is much more efficient than s/\n// because it neither
scans nor copies the string. If VARIABLE is omitted, chops $_.
Example:
while (<>) {
chop; # avoid \n on last field
@array = split(/:/);
...
}
You can actually chop anything that's an lvalue, including an assignment:
chop($cwd = `pwd`);
chop($answer = <STDIN>);
If you chop a list, each element is chopped. Only the value of the
last chop is returned.
Note that chop returns the last character. To return all but the last
character, use substr($string, 0, ™1).
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