サーバーのよく使うコマンドメモ| join

Summery

入力行のあるフィールドを比較し、同一だった場合、結合して標準出力に出力します。

Construction

$ join [option]... FILE1 FILE2

Option

スペースで区切られた最初のフィールドがデフォルトで比較されます。 FILE1 または FILE2 が - の場合(両方は不可)、標準入力から読み込まれます。

-a FILENUM ファイル FILENUM からの組み合わせの対応づけができない行も 出力する。FILENUM は 1 または 2 でありそれぞれ FILE1 または FILE2 を表す -e EMPTY 入力フィールドが存在しない場合 EMPTY で置き換える -i, --ignore-case ignore differences in case when comparing fields -j FIELD equivalent to '-1 FIELD -2 FIELD' -o FORMAT obey FORMAT while constructing output line -t CHAR use CHAR as input and output field separator -v FILENUM -a FILENUM と同様だた結合した行を出力しない -1 FIELD FILE1 の FIELD 番目のフィールドを使用して結合する -2 FIELD FILE1 の FIELD 番目のフィールドを使用して結合する --check-order 入力行の組み合わせが全て存在していたとしても、入力 が正しく並べ替えられているかを確認する --nocheck-order 入力が正しく並べられているかを確認しない --header 各ファイルの1行目をヘッダとして扱い、結合せずに 表示を行う -z, --zero-terminated line delimiter is NUL, not newline --help この使い方を表示して終了する --version バージョン情報を表示して終了する

Sample

111 222 333 111 333 444 $ join aaa.txt bbb.txt 111 333

Discription

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 FILENUM also print unpairable lines from file FILENUM, where FILENUM is 1 or 2, corresponding to FILE1 or FILE2 -e EMPTY replace missing input fields with EMPTY -i, --ignore-case ignore differences in case when comparing fields -j FIELD equivalent to '-1 FIELD -2 FIELD' -o FORMAT obey FORMAT while constructing output line -t CHAR use CHAR as input and output field separator -v FILENUM like -a FILENUM, but suppress joined output lines -1 FIELD join on this FIELD of file 1 -2 FIELD join on this FIELD of file 2 --check-order check that the input is correctly sorted, even if all input lines are pairable --nocheck-order do not check that the input is correctly sorted --header treat the first line in each file as field headers, print them without trying to pair them -z, --zero-terminated line delimiter is NUL, not newline --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 sepa‐ rated by CHAR. Any FIELD is a field number counted from 1. FORMAT is one or more comma or blank separated specifications, each being 'FILENUM.FIELD' or '0'. Default FORMAT outputs the join field, the remaining fields from FILE1, the remaining fields from FILE2, all separated by CHAR. If FORMAT is the keyword 'auto', then the first line of each file determines the number of fields output for each line. Important: FILE1 and FILE2 must be sorted on the join fields. E.g., use "sort -k 1b,1" if 'join' has no options, or use "join -t ''" if 'sort' has no options. Note, comparisons honor the rules specified by 'LC_COLLATE'. If the input is not sorted and some lines cannot be joined, a warning message will be given. GNU coreutils online help: <http: //www.gnu.org/software/coreutils></http:> Report join translation bugs to <http: //translationproject.org/team></http:> AUTHOR Written by Mike Haertel. COPYRIGHT Copyright © 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http: //gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO comm(1), uniq(1) The full documentation for join is maintained as a Texinfo manual. If the info and join pro‐ grams are properly installed at your site, the command info coreutils 'join invocation' should give you access to the complete manual. GNU coreutils 8.23 September 2014 JOIN(1)