df: disk free 其功能是显示磁盘可用空间数目信息及空间结点信息。换句话说，就是报告在任何安装的设备或目录中，还剩多少自由的空间。
rpm：即 RedHat Package Management，是 RedHat 的发明之一rmdir：Remove Directory（删除目录）rm：Remove（删除目录或文件）cat: concatenate 连锁 cat file1 file2>>file3把文件1和文件2的内容联合起来放到 file3中insmod: install module,载入模块ln -s : link -soft 创建一个软链接，相当于创建一个快捷方式mkdir：Make Directory(创建目录touchman: Manualpwd：Print working directorysu：Swith usercd：Change directoryls：List filesps：Process Statusmkdir：Make directoryrmdir：Remove directorymkfs: Make file systemfsck：File system checkcat: Concatenateuname: Unix namedf: Disk freedu: Disk usagelsmod: List modulesmv: Move filerm: Remove filecp: Copy fileln: Link filesfg: Foregroundbg: Backgroundchown: Change ownerchgrp: Change groupchmod: Change modeumount: Unmountdd: 本来应根据其功能描述“Convert an copy”命名为“cc”，但“cc”已经被用以代表“C Complier”，所以命名为“dd”tar：Tape archiveldd：List dynamic dependenciesinsmod：Install modulermmod：Remove modulelsmod：List module文件结尾的"rc"（如.bashrc、.xinitrc 等）：Resource configurationKnnxxx / Snnxxx（位于 rcx.d 目录下）：K（Kill）；S(Service)；nn（执行顺序号）；xxx（服务标识）.a（扩展名 a）：Archive，static library.so（扩展名 so）：Shared object，dynamically linked library.o（扩展名 o）：Object file，complied result of C/C++ source fileRPM：Red hat package managerdpkg：Debian package managerapt：Advanced package tool（Debian 或基于 Debian 的发行版中提供）bin = BINaries/dev = DEVices/etc = ETCetera/lib = LIBrary/proc = PROCesses/sbin = Superuser BINaries/tmp = TeMPorary/usr = Unix Shared Resources/var = VARiable ?FIFO = First In, First OutGRUB = GRand Unified BootloaderIFS = Internal Field SeperatorsLILO = LInux LOaderMySQL = My 是最初作者女儿的名字，SQL = Structured Query LanguagePHP = Personal Home Page Tools = PHP Hypertext PreprocessorPS = Prompt StringPerl = "Pratical Extraction and Report Language" = "Pathologically Eclectic Rubbish Lister"Python 得名于电视剧 Monty Python's Flying CircusTcl = Tool Command LanguageTk = ToolKitVT = Video TerminalYaST = Yet Another Setup Toolapache = "a patchy" serverapt = Advanced Packaging Toolar = archiveras = assemblerawk = "Aho Weiberger and Kernighan" 三个作者的姓的第一个字母bash = Bourne Again SHellbc = Basic (Better) Calculatorbg = BackGroundbiff = 作者 Heidi Stettner 在 U.C.Berkely 养的一条狗,喜欢对邮递员汪汪叫。cal = CALendarcat = CATenatecd = Change Directorychgrp = CHange GRouPchmod = CHange MODechown = CHange OWNerchsh = CHange SHellcmp = comparecobra = Common Object Request Broker Architecturecomm = commoncp = CoPycpio = CoPy In and Outcpp = C Pre Processorcron = Chronos 希腊文时间cups = Common Unix Printing Systemcvs = Current Version Systemdaemon = Disk And Execution MONitordc = Desk Calculatordd = Disk Dumpdf = Disk Freediff = DIFFerencedmesg = diagnostic messagedu = Disk Usageed = editoregrep = Extended GREPelf = Extensible Linking Formatelm = ELectronic Mailemacs = Editor MACroSeval = EVALuateex = EXtendedexec = EXECutefd = file descriptorsfg = ForeGroundfgrep = Fixed GREPfmt = formatfsck = File System ChecKfstab = FileSystem TABlefvwm = F*** Virtual Window Managergawk = GNU AWKgpg = GNU Privacy Guardgroff = GNU troffhal = Hardware Abstraction Layerjoe = Joe's Own Editorksh = Korn SHelllame = Lame Ain't an MP3 Encoderlex = LEXical analyserlisp = LISt Processing = Lots of Irritating Superfluous Parenthesesln = LiNklpr = Line PRintls = listlsof = LiSt Open Filesm4 = Macro processor Version 4man = MANual pagesmawk = Mike Brennan's AWKmc = Midnight Commandermkfs = MaKe FileSystemmknod = MaKe NODemotd = Message of The Daymozilla = MOsaic GodZILLamtab = Mount TABlemv = MoVenano = Nano's ANOther editornawk = New AWKnl = Number of Linesnm = namesnohup = No HangUPnroff = New ROFFod = Octal Dumppasswd = PASSWorDpg = pagerpico = PIne's message COmposition editorpine = "Program for Internet News & Email" = "Pine is not Elm"ping = 拟声又 = Packet InterNet Grouperpirntcap = PRINTer CAPabilitypopd = POP Directorypr = preprintf = PRINT Formattedps = Processes Statuspty = pseudo ttypushd = PUSH Directorypwd = Print Working Directoryrc = runcom = run command, rc 还是 plan9的 shellrev = REVerserm = ReMovern = Read Newsroff = RunOFFrpm = RPM Package Manager = RedHat Package Managerrsh, rlogin, rvim 中的 r = Remoterxvt = ouR XVTseamoneky = 我sed = Stream EDitorseq = SEQuenceshar = SHell ARchiveslrn = S-Lang rnssh = Secure SHellssl = Secure Sockets Layerstty = Set TTYsu = Substitute Usersvn = SubVersioNtar = Tape ARchivetcsh = TENEX C shelltee = T (T 形水管接口)telnet = TEminaL over Networktermcap = terminal capabilityterminfo = terminal informationtex = τ转载于:https://www.cnblogs.com/xfbx/p/7465377.html
