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sshを切っても動くデーモンをnohupで簡単につくる

Last updated at Posted at 2017-08-15

nohupというunixコマンドを使えば、ssh接続を切った時に発生するHUPをトリガーにprocessがkillされることを防げる。

基本的な使い方

&を使ってバックグラウンド実行させる

(ssh)$ nohup [command] > log.txt &
(ssh)$ exit

ログをとらない時

入力と出力を明記する

(ssh)$ nohup [command] < /dev/null 2>&1 /dev/null &
(ssh)$ exit

入力: < /dev/null (null。つまり何もなし)
出力:2>&1 /dev/null (標準出力、標準エラー出力共にnullに。つまり何もなし)

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