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JOIN(1) FSF JOIN(1)
join - join lines of two files on a common field
join [OPTION]... FILE1 FILE2
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.
print unpairable lines coming from file SIDE
replace missing input fields with EMPTY
-i, --ignore-case ignore differences in case when comparing fields
(obsolescent) equivalent to `-1 FIELD -2 FIELD'
(obsolescent) equivalent to `-1 FIELD'
(obsolescent) equivalent to `-2 FIELD'
obey FORMAT while constructing output line
use CHAR as input and output field separator
like -a SIDE, but suppress joined output lines
join on this FIELD of file 1
join on this FIELD of file 2
--help display this help and exit
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.
Written by Mike Haertel.
Report bugs to <email@example.com>.
Copyright (C) 2002 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.
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
should give you access to the complete manual.
join (coreutils) 4.5.3 February 2003 JOIN(1)
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