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我想要做的是:连接多个命令
>STRIPPER='sed s/admin_editable=\"[01]\"// | sed s/runtime_editable=\"[01]\"//'
>cat file.txt | $STRIPPER > stripped.txt
即定义一个shell变量是多个命令的管道(我碰巧sed
的),我然后可以再打电话。我现在正在从命令行执行此操作,但最终可能会将其放入脚本中。
我都试过“和”为
sed: can't read |: No such file or directory
sed: can't read sed: No such file or directory
sed: can't read s/admin_editable=\"[01]\"//: No such file or directory
sed: can't read |sed: No such file or directory
sed: can't read s/runtime_editable=\"[01]\"//: No such file or directory
sed: can't read |: No such file or directory
封闭命令既不的作品。我知道有可能是一个单一的正则表达式,可以处理这种情况,但我想知道如何做管道一般
流水线是shell语法的一部分,因此在任何参数扩展发生之前都会被识别出来。 – chepner