#!/bin/bash --loose-syntax
$ 10
Error: command not found.<p>'awk|bash|bc|c[au]t|ch{own,grp,mod}|c{ol,mp,omm}|{ls,ll,file,cp,mv,rm,ln}|{cd,popd,pushd,pwd,{mk,rm}dir}|{cron,at,crontab}|diff|d[uf]|{clear|echo|tput}|[ fe]grep|{e{d,macs},vi[ m]}|{[ c]fdisk,fsck,[ u]mount}|{find,locate,whatis, whereis,which}|{more,less,pg}|pr|lp{r,admin}|{tr|sed|sort}|su{ ,do}|{ping,traceroute,netstat,ssh,rcp}|xargs|yes'