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teeでgz圧縮しながら保存する

More than 3 years have passed since last update.

↓こんな感じにすればOK。一時ファイルも出来ないので便利です。

echo hoge | tee >(gzip -c >hoge.gz)

仕組みとしては Bash の Process Substitution っていう機能を使ってます。

よく「2つのコマンドの出力結果のdiffを取る」とかを例示して紹介される機能ですが、「サブシェルの出力を入力として使う例」はよく見るけど「出力をサブシェルの入力に使う例」はあまり見ないなーと思ったので、僕がたまに使うケースを例に紹介してみた。

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