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电子工程专辑
4 年
你知道shell脚本中$0 $1 $# $@ $* $? $$ 都是什么意思吗?
shell中有两类字符:普通字符、元字符。 是Shell的保留字符,在Shell中有着特殊的含义。 今天主要介绍一下shell中字符$的各种 ...
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