Shell声明变量的相关内容

Shell把字符串声明成变量

文件build.properties中定义属性值： jar_out_dir=/tmp/aaa 在shell中读取： build]$ grep jar_out_dir build.properties jar_out_dir=/tmp/aaa 我希望把“jar_out_dir=/tmp/a...

shell中强制声明变量

可以在shell中强制必须声明变量，shopt 指令,如下面的指令mustpreset.sh 运行结果为50 #!/bin/shdeclare Informix=50echo $Informix 注意：在ubuntu中，运行此脚本需用 $bash mustpreset.sh,因为默认的sh版本为d...

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更新时间 2022-09-14 10:44:28

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