++ed by:
GARU NGLENN THALJEF AYOUNG ZMUGHAL

6 PAUSE users
7 non-PAUSE users.

Rocky Bernstein

Synopsis:

watch Perl-expression

Stop very time Perl-expression changes from its prior value.

Examples:

 watch $a  # enter debugger when the value of $a changes
 watch scalar(@ARGV))  # enter debugger if size of @ARGV changes.

See also

delete, enable, disable, and info watch.