LibTermBy Develobile S.p.A. ( Free )
LibTerm is a command line interface for iPhone and iPad. Commands: ping, readlink, chmod, telnet, host, du, link, dig, egrep, bc, date, gzip, nslookup, fgrep, mv, md5, say, luac, xargs, diff, cd, tee, chksum, touch, dc, tar, ...