Linux learning, linux

Linux learning, linux

Linux Command

Su: Switch the Swith user to the root user.
Cat: Concatenate
Uname: Unix name system name
Df: Disk free hard Disk
Du: Disk usage hard Disk usage
Chown: Change owner
Chgrp: Change group Change User group
Ps: Process Status
Tar: Tape archive decompress the file
Chmod: Change mode
Umount: Unmount uninstall
Ldd: List dynamic dependencies
Insmod: Install module installation module
Rmmod: Remove module Delete module
Lsmod: List module
Alias: Create your own name for a command
Bash: GNU Bourne-Again Shell Linux Kernel
Grep: global regular expression print
Httpd: Start Apache
Ipcalc: Calculate IP information for a host
Ping: Send ICMP ECHO_Request to network hosts
Reboot: Restart your computer
Sudo: Superuser do

/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 Out
GRUB = GRand uniied Bootloader
IFS = Internal Field Seperators
LILO = LInux LOader
MySQL = My first author's name: SQL = Structured Query Language
PHP = Personal Home Page Tools = PHP Hypertext Preprocessor
PS = Prompt String
Perl = "Pratical Extraction and Report Language" = "Pathologically Eclectic Rubbish Lister"
Python Monty Python's Flying Circus
Tcl = Tool Command Language
Tk = ToolKit
VT = Video Terminal
YaST = Yet Another Setup Tool
Apache = "a patchy" server
Apt = Advanced Packaging Tool
Ar = archiver
As = Explorer
Bash = Bourne Again SHell
Bc = Basic (Better) Calculator
Bg = BackGround
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
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
Egrep = Extended GREP
Elf = Extensible Linking Format
Elm = ELectronic Mail
Emacs = Editor MACroS
Eval = EVALuate
Ex = EXtended
Exec = EXECute
Fd = file descriptors
Fg = ForeGround
Fgrep = Fixed GREP
Fmt = format
Fsck = File System ChecK
Fstab = FileSystem TABle
Fvwm = F *** Virtual Window Manager
Gawk = GNU AWK
Gpg = GNU Privacy Guard
Groff = GNU troff
Hal = Hardware prepare action Layer
Joe = Joe's Own Editor
Ksh = Korn SHell
Lame = Lame Ain't an MP3 Encoder
Lex = LEXical analyser
Lisp = LISt Processing = Lots of Irritating Superfluous Parentheses
Ln = LiNk
Lpr = Line PRint
Ls = list
Lsof = LiSt Open Files
M4 = Macro processor Version 4
Man = MANual pages
Mawk = Mike Brennan's AWK
Mc = Midnight Commander
Mkfs = MaKe FileSystem
Mknod = MaKe NODe
Motd = Message of The Day
Mozilla = MOsaic GodZILLa
Mtab = Mount TABle
Mv = MoVe
Nano = Nano's ANOther editor
Nawk = New AWK
Nl = Number of Lines
Nm = names
Nohup = No HangUP
Nroff = New ROFF
Od = Octal Dump
Passwd = PASSWorD
Pg = pager
Pico = PIne's message COmposition editor
Pine = "Program for Internet News & Email" = "Pine is not Elm"
Ping = Packet InterNet Grouper
Pirntcap = PRINTer CAPability
Popd = POP Directory
Pr = pre
Printf = PRINT Formatted
Ps = Processes Status
Pty = pseudo tty
Pushd = PUSH Directory
Pwd = Print Working Directory
Rc = runcom = run command, shell
Rev = REVerse
Rm = ReMove
Rn = Read News
Roff = RunOFF
Rpm = RPM Package Manager = RedHat Package Manager
Rsh, rlogin, = Remote
Rxvt = ouR XVT
Sed = Stream EDitor
Seq = SEQuence
Shar = SHell ARchive
Slrn = S-Lang rn
Ssh = Secure SHell
Ssl = Secure Sockets Layer
Stty = Set TTY
Su = Substitute User
Svn = SubVersioN
Tar = Tape ARchive
Tcsh = tenex c shell
Telnet = TEminaL over Network
Termcap = terminal capability
Terminfo = terminal information
Tr = traslate
Troff = Typesetter new ROFF
Tsort = Topological SORT
Tty = TeleTypewriter
Twm = Tom's Window Manager
Tz = TimeZone
Udev = Userspace DEV
Ulimit = User's LIMIT
Umask = User's MASK
Uniq = UNIQue
Vi = VIsual = Very Inconvenient
Vim = Vi IMproved
Wall = write all
Wc = Word Count
Wine = WINE Is Not an Emulator
Xargs = eXtended ARGuments
Xdm = X Display Manager
Xlfd = X Logical Font Description
Xmms = X Multimedia System
Xrdb = X Resources DataBase
Xwd = X Window Dump
Yacc = yet another compiler



1./bin: Command required to obtain minimum system operability
2./boot: the kernel and files required to load the kernel
3./dev: Device items such as terminals, disks, and Modem
4./etc: Key startup files and configuration files
5./home: the user's home directory
6./lib: C compiler library and some C Compilers
7./media: File System Installation Point on removable media
8./opt: optional application installation package
9./proc: images of all running processes
10./root: root user's home directory
11./sbin: Command for guiding, repairing, or restoring the system
12./tmp: temporary file that disappears after each reboot
13./usr: level of secondary files and commands
14./usr/bin: Most commands and executable files
15./usr/include: Compile the header file of the C program.
16./usr/lib: Library, supporting files for standard programs
17./usr/local: local software (software written or installed by the user)
18./usr/local/bin: local Executable File
19./usr/local/etc: local system configuration file and command
20./usr/local/lib: local support file
21./usr/local/sbin: local system maintenance commands with static links
22. Source Code of/usr/local/src:/usr/local /*
23./usr/man: Online User Manual
24. uncritical system management commands and repair commands for/usr/sbin
25./usr/share: something common to multiple systems (read-only)
26./usr/share/man: leveling User Manual
27./usr/src: source code of a non-local software package
28./var: System-specific data and configuration files
29./var/adm: different things
30./var/log: Various System log Files
31./var/spool: offline directory for printers and emails
32./var/tmp: more temporary space (the file is retained after the reboot)