3.2.81 last

last LABEL
last

The last command is like the break statement in C (as used in loops); it immediately exits the loop in question. If the LABEL is omitted, the command refers to the innermost enclosing loop. The continue block, if any, is not executed.

LINE: while (<STDIN>) {
    last LINE if /^$/; # exit when done with header
    # rest of loop here
}