Jan*_*nen 23
$1 (或 $2,$3 ...) 应该是给某个脚本的参数。
这是一个示例脚本:
#!/bin/bash
echo "\$1 is now $1"
echo "\$2 is now $2"
echo "\$3 is now $3"
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和示例输出
jaba@lappy:/tmp$ ./example.sh
$1 is now
$2 is now
$3 is now
jaba@lappy:/tmp$ ./example.sh 1 2 3
$1 is now 1
$2 is now 2
$3 is now 3
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