NAME    [Toc]    [Back]

       join - join lines of two files on a common field

SYNOPSIS    [Toc]    [Back]

       join [OPTION]... FILE1 FILE2

DESCRIPTION    [Toc]    [Back]

       For  each  pair of input lines with identical join fields, write a line
       to standard output.  The default join field is the first, delimited  by
       whitespace.   When FILE1 or FILE2 (not both) is -, read standard input.

       -a SIDE
	      print unpairable lines coming from file SIDE

       -e EMPTY
	      replace missing input fields with EMPTY

       -i, --ignore-case ignore differences in case when comparing fields

       -j FIELD
	      (obsolescent) equivalent to `-1 FIELD -2 FIELD'

       -j1 FIELD
	      (obsolescent) equivalent to `-1 FIELD'

       -j2 FIELD
	      (obsolescent) equivalent to `-2 FIELD'

       -n     input files are sorted numerically

       -o FORMAT
	      obey FORMAT while constructing output line

       -t CHAR
	      use CHAR as input and output field separator

       -v SIDE
	      like -a SIDE, but suppress joined output lines

       -1 FIELD
	      join on this FIELD of file 1

       -2 FIELD
	      join on this FIELD of file 2

       --help display this help and exit

       --version
	      output version information and exit

       Unless -t CHAR  is  given,  leading  blanks  separate  fields  and  are
       ignored,  else fields are separated by CHAR.  Any FIELD is a field number
 counted from 1.  FORMAT is one or more  comma  or  blank  separated
       specifications, each being `SIDE.FIELD' or `0'.	Default FORMAT outputs
       the join field, the remaining fields from FILE1, the  remaining	fields
       from FILE2, all separated by CHAR.

AUTHOR    [Toc]    [Back]

       Written by Mike Haertel.

REPORTING BUGS    [Toc]    [Back]

       Report bugs to <bug-textutils@gnu.org>.

COPYRIGHT    [Toc]    [Back]

       Copyright (C) 1999 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is
       NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A  PARTICULAR
       PURPOSE.

SEE ALSO    [Toc]    [Back]

       The  full documentation for join is maintained as a Texinfo manual.  If
       the info and join programs are properly installed  at  your  site,  the
       command

	      info join

       should give you access to the complete manual.



GNU textutils 2.0		   July 2001			       JOIN(1)