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シェルスクリプトでユーザ入力により分岐する場合

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1.readを利用してユーザ入力を読み込み
 e.g read ACTION
2.case文を利用して入力内容に対する処理を分岐
e.g
case ${ACTION} in
1)
処理1
;;
2)
処理2
;;
esac

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