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現在実行中のシェルを知る方法

Posted at

現在実行中のシェルを知る方法

echo $0

ログインシェルを知る方法

echo $SHELL
(シェルを変更しても、環境変数$SHELLは変更されないので注意すること)

シェルの深さを知る方法

echo $SHLVL
(ログイン後シェルを切り替えていて混乱した時に使用すればいい)

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