Linux Common commands

1. Manipulating Directory Commands     CD directory name                 to switch or enter the directory; For example, Cd/var switches to a directory named Var under the root directory; CD Mydir Enter Mydir directory under current directory      CD-                return to the directory before entering this directory &nbsp ;    CD.                 back to previous level      CD ~          & nbsp;     returns the current user home directory      mkdir [parameter] directory name                  Create a directory; For example mkdir newdir create a directory named Newdir                 parameters:-P recursive creation      LS [Parameters]                list files and directories in the current directory               & nbsp; Parameters:-l display file and directory details                        -A Show hidden files and directories &N Bsp                      -LH display filesand directory details and display size units   2. Commands for manipulating FilesTouch file name Create a new file cat file name to view the contents of the file, from beginning to end to display the file contents;                Space page DOWN, b page UP, q exit head [parameter] file name displays the contents of the head of the document parameter:-n Display file header n line ln-s source file destination file Create a soft link (shortcut), note that the file must write an absolute path 3. Commands that can be manipulated by files and directories      COPY: CP [parameter] source file/source directory target file                 parameter:-r copy directory   &NBSP ;                    -p even file with properties copy           &NBSP ;            -d If the source file is a linked file, copy the link file properties                 &NB Sp      -F mandatory                 Copy catalog: CP-RF source directory   Target location     & nbsp           Copy files: CP source files   Target location       Cut or rename: MV source file/source directory target location       & nbsp         Cut directory: MV Source directory target location                 cut file: MV Source file target location       Delete: RM [parameters] File/directory                 parameters:-R Delete directory       &NBS P                -F mandatory                 Delete directory: R M -RF Directory name                 Delete file: RM file name   4. Compressing and decompressing      tar format           TAR-CF Test.tar test   Package The test directory as a tar grid Test.tar files           tar-tvf Test.tar   View files that are included in the tar format file    & nbsp      TAR-XVF Test.tar   Unzip Test.tar file in tar format     GZ format       & NBSP;   TAR-ZCVF test.tar.gz test  compress the test directory into GZ format test.tar.gz file            TAR-ZXVF test.tar.gz   Unzip the test.tar.gz file in GZ format      bz2 format       &NBSP ;   TAR-JCVF test.tar.bz2 test   Compress test directory into bz2 format test.tar.bz2 file           TAR-JXVF test.tar.bz2   Unzip test.tar.bz2 file in bz2 format      zip format           Zip-r Test.zip Test   Compress the test directory into a zip-format test.zip file           Unzip Test.zip   Unzip the Test.zip file in the ZIP format & nbsp 5. Find CommandsThe Whereis program name locates the path of the program name and detects the program's Help document location Find-name file name Find location 6. Permission ActionsChown 777 Test Set 777 permissions to test file Chown-r www Test modify test file owner for www chgrp-r www modify test file owning Group is www 7. User Managementuseradd test to add a test user passwd test set or modify test password Userdel Test delete test user userdel-r test Delete test user while deleting test home directory 8. Shutdown. restartShutdown shutdown-h Now (root user is available) halt init 0 Restart Shutdown-r Now (can be used by root user) Reboot init 6

Linux Common commands