loadingawk
= \三个作者的姓的第一个字母 bash
= Bourne Again SHell bc
= Basic (Better) Calculator bg
= BackGround biff
= 作者Heidi
Stettner在U.C.Berkely养的一条狗,喜欢对邮递员汪汪叫。 cal
= CALendar cat
= CATenate
cd
= Change Directory chgrp
= CHange GRouP chmod
= CHange MODe chown
= CHange OWNer chsh
= CHange SHell cmp = compare cobra
= Common Object Request Broker Architecture
comm = common cp = CoPy cpio
= CoPy In and Out cpp
= C Pre Processor cron
= Chronos 希腊文时间 cups
= Common Unix Printing System cvs
= Current Version System daemon
= Disk And Execution MONitor dc
= Desk Calculator dd
= Disk Dump df
= Disk Free diff
= DIFFerence dmesg
= diagnostic message du
= Disk Usage ed = editor