コマンドの実行結果を変数に。。。(シェルスクリプト編)

前回は、Windows BAT編でしたが、今回はUNIXやLinuxに組み込まれているシェルスクリプト編の紹介です。

これは、本当によく使います。ていうか、絶対に覚えなければなりません!!

①実行結果の標準出力を変数に設定

VAR=`command`



②実行結果の標準エラー出力を変数に設定

VAR=`command 2>&1 >/dev/null`


②の補足として、標準出力は「1」であり、標準エラー出力は「2」なのです。この辺りは、機会があれば少し掘り下げても良いかもしれませんね♪



いいね!と思った方は、ぜひクリックして下さい♪

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