[zwp]

Also tedious:

    $ ls -Q
    ls: illegal option -- Q
    usage: ls -aAbBcCdeEfFghHiklLmnopqrRsStuUwxvV1@/[c | v]%[atime | crtime | ctime | mtime | all] [files]

It's succinct but that second line is almost completely useless.

[mcantor]

One of my favorites is tar:

    $ tar -m foo
    tar: You must specify one of the `-Acdtrux' options
    Try `tar --help' or `tar --usage' for more information.

Oh, right! `-Acdtrux'! How could I have forgotten. I deal with ACD Trucks all the time. (?!?!)