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grepコマンド

Last updated at Posted at 2019-07-16

#grep
grep は特定の文字列を含むファイルの検索ができる。

xargsとの併用に関しては別スレッド。

$ grep [検索正規表現] [option] [directory] 

[検索正規表現] [option]については順不同。

ディレクトリは、例えば現階層のファイル全てから検索であれば./*で検索。

オプションは主に使うものだけ以下にメモ

#大文字と小文字を区別せず検索
$ grep [検索正規表現] -i [directory] 

#一致しないものを検索
$ grep [検索正規表現] -v [directory] 

#行番号と併せて表示
$ grep [検索正規表現] -n [directory] 

#ファイル名のみ表示
$ grep [検索正規表現] -l [directory] 

#ディレクトリ内も検索に含める
$ grep [検索正規表現] -r [directory] 
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