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Lệnh Linux A-Z

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Lệnh Linux A-Z

Post  Admin on Sun Apr 17, 2011 5:18 am

1. alias Create an alias
2. awk Find and Replace text, database sort/validate/indexbreak Exit from a loop
3. builtin Run a shell builtin

4. cal Display a calendar
5. case Conditionally perform a commandcat Display the contents of a file
6. cd Change Directory
7. cfdisk Partition table manipulator for Linuxchgrp Change group ownershipchmod Change access permissionschown Change file owner and group
8. chroot Run a command with a different root directorycksum Print CRC checksum and byte counts
9. clear Clear terminal screen
10. cmp Compare two files
11. comm Compare two sorted files line by line
12. command Run a command - ignoring shell functions
13. continue Resume the next iteration of a loopcp Copy one or more files to another locationcron Daemon to execute scheduled commands
14. crontab Schedule a command to run at a later timecsplit Split a file into context-determined pieces
15. cut Divide a file into several parts

16. date Display or change the date & time
17. dc Desk Calculator
18. dd Data Dump - Convert and copy a file
19. declare Declare variables and give them attributesdf Display free disk spacediff Display the differences between two filesdiff3 Show differences among three filesdir Briefly list directory contents
20. dircolors Colour setup for `ls'dirname Convert a full pathname to just a path
21. dirs Display list of remembered directories
22. du Estimate file space usage

23. echo Display message on screen
24. ed A line-oriented text editor (edlin)
25. egrep Search file(s) for lines that match an extended expression
26. eject Eject CD-ROM
27. enable Enable and disable builtin shell commands
28. env Display, set, or remove environment variables
29. eval Evaluate several commands/arguments
30. exec Execute a command
31. exit Exit the shell
32. expand Convert tabs to spaces
33. export Set an environment variable
34. expr Evaluate expressions

35. factor Print prime factors
36. false Do nothing, unsuccessfully
37. fdformat Low-level format a floppy disk
38. fdisk Partition table manipulator for Linux
39. fgrep Search file(s) for lines that match a fixed string
40. find Search for files that meet a desired criteria
41. fmt Reformat paragraph text
42. fold Wrap text to fit a specified width.
43. for Expand words, and execute commands
44. format Format disks or tapes
45. free Display memory usage
46. fsck Filesystem consistency check and repair.
47. function Define Function Macros

48. gawk Find and Replace text within file(s)
49. getopts Parse positional parameters
50. grep Search file(s) for lines that match a given pattern
51. groups Print group names a user is in
52. gzip Compress or decompress named file(s)

53. hash Remember the full pathname of a name argument
54. head Output the first part of file(s)history Command History
55. hostname Print or set system name

56. id Print user and group id's
57. if Conditionally perform a command
58. import Capture an X server screen and save the image to file
59. info Help info
60. install Copy files and set attributes

61. join Join lines on a common field

62. kill Stop a process from running

63. less Display output one screen at a time
64. let Perform arithmetic on shell variables
65. ln Make links between files
66. local Create variables
67. locate Find files
68. logname Print current login name
69. logout Exit a login shell
70. lpc Line printer control program
71. lpr Off line print
72. lprint Print a file
73. lprintd Abort a print job
74. lprintq List the print queue
75. lprm Remove jobs from the print queue
76. ls List information about file(s)

77. m4 Macro processor
78. man Help manual
79. mkdir Create new folder(s)
80. mkfifo Make FIFOs (named pipes)
81. mknod Make block or character special files
82. more Display output one screen at a time
83. mount Mount a file system
84. mtools Manipulate MS-DOS files
85. mv Move or rename files or directories

86. nice Set the priority of a command or job
87. nl Number lines and write files
88. nohup Run a command immune to hangups

89. passwd Modify a user password
90. paste Merge lines of files
91. pathchk Check file name portability
92. popd Restore the previous value of the current directory
93. pr Convert text files for printing
94. printcap Printer capability database
95. printenv Print environment variables
96. printf Format and print data
97. ps Process status
98. pushd Save and then change the current directory
99. pwd Print Working Directory

100. quota Display disk usage and limits
101. quotacheck Scan a file system for disk usage
102. quotactl Set disk quotas

103. ram ram disk device
104. rcp Copy files between two machines.
105. read read a line from standard input
106. readonly Mark variables/functions as readonly
107. remsync Synchronize remote files via email
108. return Exit a shell function
109. rm Remove files
110. rmdir Remove folder(s)
111. rpm Remote Package Manager
112. rsync Remote file copy (Synchronize file trees)

113. screen Terminal window manager
114. sdiff Merge two files interactively
115. sed Stream Editor
116. select Accept keyboard input
117. seq Print numeric sequences
118. set Manipulate shell variables and functions
119. shift Shift positional parameters
120. shopt Shell Options
121. shutdown Shutdown or restart linux
122. sleep Delay for a specified time
123. sort Sort text files
124. source Run commands from a file `.'
125. split Split a file into fixed-size pieces
126. su Substitute user identity
127. sum Print a checksum for a file
128. symlink Make a new name for a file
129. sync Synchronize data on disk with memory

130. tac Concatenate and write files in reverse
131. tail Output the last part of files
132. tar Tape ARchiver
133. tee Redirect output to multiple files
134. test Evaluate a conditional expression
135. time Measure Program Resource Use
136. times User and system times
137. touch Change file timestamps
138. top List processes running on the system
139. traceroute Trace Route to Host
140. trap Run a command when a signal is set(bourne)
141. tr Translate, squeeze, and/or delete characters
142. true Do nothing, successfully
143. tsort Topological sort
144. tty Print filename of terminal on stdin
145. type Describe a command

146. ulimit Limit user resources
147. umask Users file creation mask
148. umount Unmount a device
149. unalias Remove an alias
150. uname Print system information
151. unexpand Convert spaces to tabs
152. uniq Uniquify files
153. units Convert units from one scale to another
154. unset Remove variable or function names
155. unshar Unpack shell archive scripts
156. until Execute commands (until error)
157. useradd Create new user account
158. usermod Modify user account
159. users List users currently logged in
160. uuencode Encode a binary file uudecode Decode a file created by uuencode

161. v Verbosely list directory contents (`ls -l -b')
162. vdir Verbosely list directory contents (`ls -l -b')

163. watch Execute/display a program periodically
164. wc Print byte, word, and line counts
165. whereis Report all known instances of a command
166. which Locate a program file in the user's path.
167. while Execute commands
168. who Print all usernames currently logged in
169. whoami Print the current user id and name (`id -un')

170. xargs Execute utility, passing constructed argument list(s)
171. yes Print a string until interrupted

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