bash 雖然沒有複雜的資料結構，但都可以透過eval 來實現。 覺得這東西蠻好玩得，可以寫出一些有趣的function 。 首先基本款。 但如果變數內容是命令， ... ... <看更多>

In other words: it converts the list of its arguments (and/or expansions of such arguments) into an executed line. If for any reason, an argument has been set ... ... <看更多>

As you note, eval is evil -- and there's no need to use it here. #!/bin/bash # make args an array, not a string args=( ) # replace long arguments for arg; ... ... <看更多>

eval.c -- reading and evaluating commands. */. /* Copyright (C) 1996-2020 Free Software Foundation, Inc. This file is part of GNU Bash, the Bourne Again ... ... <看更多>

eval. eval [ arg . . . ] 명령 치환 결과로 shell 에서 실행 가능한 명령문이 나온 ... identifier bash: export: '%s"': not a valid identifier $ eval "$( echo ... ... <看更多>

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