Wednesday, 24 August 2011

Linux Most Important Basic Commands


/* << This are some quick command which are useful for beginners and as well as experts in Linux >> */

alias
 
     'USE'-> Create an alias.

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awk  
 
    'USE'-> Find and Replace text, database sort/validate/index.

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break

    'USE'-> Exit from a loop.

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builtin

    'USE'-> Run a shell builtin.

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cal    

    'USE'-> Display a calendar.

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case  

    'USE'-> Conditionally perform a command.

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cat  
 
    'USE'-> Display the contents of a file.

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cd    

    'USE'-> Change Directory.

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cfdisk

    'USE'-> Partition table manipulator for Linux.

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chgrp

    'USE'-> Change group ownership.

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chmod
 
    'USE'-> Change access permissions.

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chown  

    'USE'-> Change file owner and group.

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chroot

    'USE'-> Run a command with a different root directory.

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cksum
 
    'USE'-> Print CRC checksum and byte counts.

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clear
 
    'USE'-> Clear terminal screen.

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cmp  

   'USE'-> Compare two files.

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comm  

   'USE'-> Compare two sorted files line by line.

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command

   'USE'-> Run a command - ignoring shell functions.

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continue
 
   'USE'-> Resume the next iteration of a loop.

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cp        

   'USE'-> Copy one or more files to another location.

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cron  

   'USE'-> Daemon to execute scheduled commands.

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crontab

   'USE'-> Schedule a command to run at a later time.

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csplit

  'USE'-> Split a file into context-determined pieces.

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cut    

  'USE'-> Divide a file into several parts.

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date  

  'USE'-> Display or change the date & time.

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dc    

  'USE'-> Desk Calculator.

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dd    
 
  'USE'-> Data Dump - Convert and copy a file.

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declare

  'USE'-> Declare variables and give them attributes.

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df    

  'USE'-> Display free disk space.

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diff  

  'USE'-> Display the differences between two files.

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diff3  

  'USE'-> Show differences among three files.

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dir    

  'USE'-> Briefly list directory contents.

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dircolors

 'USE'-> Colour setup for `ls.

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dirname

 'USE'-> Convert a full pathname to just a path.

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dirs  

  'USE'-> Di

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