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EXPAND(1)							     EXPAND(1)

NAME
       expand, unexpand - expand tabs to spaces, and vice versa

SYNOPSIS
       expand [ -tabstop ] [ -tab1,tab2,...,tabn ] [ file ...  ]
       unexpand [ -a ] [ file ...  ]

DESCRIPTION
       Expand  processes  the  named  files  or the standard input writing the
       standard output with tabs changed into  blanks.	 Backspace  characters
       are  preserved  into  the output and decrement the column count for tab
       calculations.  Expand is	 useful	 for  pre-processing  character	 files
       (before sorting, looking at specific columns, etc.) that contain tabs.

       If a single tabstop argument is given, then tabs are set tabstop spaces
       apart instead of the default 8.	If multiple tabstops  are  given  then
       the tabs are set at those specific columns.

       Unexpand	 puts  tabs  back into the data from the standard input or the
       named files and writes the result on the standard output.  By  default,
       only  leading  blanks  and  tabs	 are reconverted to maximal strings of
       tabs.  If the -a option is given, then tabs are inserted whenever  they
       would compress the resultant file by replacing two or more characters.

4th Berkeley Distribution	  May 9, 1986			     EXPAND(1)
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