Could even do it with the ones I've written: Text filters: ap-client, cve-client, urlencode, httpc, kanaconv, cidr2list, lolcat, humanize, … C function wrappers: glob, timer, sig_ign, … Ones that aren't: - ula(1): Generates IPv6 ULA - deblob(1): Ah! That ones deals with binaries! :D