lsort is a very
simple tool (in fact, just a Perl one-liner), but it does a job that
is not very easy to do with classic Unix on-board equipment: sort
lines by their length.
An example application would be to cheat at some word games: what’s the longest word that contains all vocals in reverse alphabetic order?
% grep u.*o.*i.*e.*a /usr/share/dict/words |lsort unnoticeable subcontinental uncomplimentary
tail, this tool is also useful for finding
the shortest and longest lines (e.g. to find very long filenames or
huge entries in symbol tables):
% nm -D /usr/lib/chromium/chromium | lsort | tail -1
wc -L can output the longest line length, but not the
NP: Aimee Mann—Driving Sideways