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@Jochun

[Linux] シェル変数と環境変数

Posted at

シェル変数

有効範囲：定義したシェル・プロセスのみ

環境変数

有効範囲：定義したシェル・プロセス・子プロセス

シェル変数から環境変数

BashA
$ EV=world
$ SV=local
$ export=EV
$ bash ←新しいシェルを起動
BashB（子プロセス）
$ echo=EV
// 出力結果
// world ←引き継がれる（環境変数化）

$ echo=SV
// 出力結果
// 　　　←引き継がれない

Ping-t

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