GREP(I) 5/15/74 GREP(I)





GREP(I)                      5/15/74                      GREP(I)







NAME

     grep - search a file for a pattern



SYNOPSIS

     grep [ -v ] [ -b ] [ -c ] [ -n ] expression [ file ] ...



DESCRIPTION

     Grep searches the input files (standard input  default)  for

     lines  matching the regular expression.  Normally, each line

     found is copied to the standard output.  If the -v  flag  is

     used,  all  lines but those matching are printed.  If the -c

     flag is used, only a count of matching lines is printed.  If

     the -n flag is used, each line is preceded its relative line

     number in the file.  If the -b flag is used,  each  line  is

     preceded by the block number on which it was found.  This is

     sometimes useful in locating disk block numbers by context.



     In all cases the file name is shown if there  is  more  than

     one input file.



     For a complete description of the regular expression, see ed

     (I).  Care should be taken when using the characters $ * [ ^

     | ( ) and \ in the  regular  expression  as  they  are  also

     meaningful  to  the  Shell.   It  is  generally necessary to

     enclose the entire expression argument in quotes.



SEE ALSO

     ed (I), sh (I)



BUGS

     Lines are  limited  to  256  characters;  longer  lines  are

     truncated.
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