The next
command is like the continue
statement in C; it starts the next iteration of the loop:
LINE: while (<STDIN>) {
next LINE if /^#/; # discard comments
#...
}
Note that if there were a continue
block on the above, it would get executed even on discarded lines. If LABEL is omitted, the command refers to the innermost enclosing loop.
next
cannot be used to exit a block which returns a value such as eval {}
, sub {}
, or do {}
, and should not be used to exit a grep() or map() operation.
Note that a block by itself is semantically identical to a loop that executes once. Thus next
will exit such a block early.
See also "continue" for an illustration of how last
, next
, and redo
work.