JOIN("1") manual page

Table of Contents

## Name

join - join lines of two files on a common field

## Synopsis

join [OPTION]... FILE1 FILE2

## Description

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' -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.

## Reporting Bugs

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

## See Also

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.

## Copyright

Copyright © 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.

Table of Contents

- Name
- Synopsis
- Description
- Reporting Bugs
- See Also
- Copyright