Linux shell trap 的相关内容

Linux Shell之九 trap--陷阱触发

在script的执行过程中，有时候希望能实时处理系统传来的信号，如用户按了Ctrl-C。处理的方式分为两种：接受信号或忽略信号。接受信号通常会对信号安排执行特定的命令，忽略信号主要是避免意外的状况干扰script的运行。像这...

linux shell trap的使用

一. trap捕捉到信号之后，可以有三种反应方式：　　(1)执行一段程序来处理这一信号　　(2)接受信号的默认操作　　(3)忽视这一信号　二. trap对上面三种方式提供了三种基本形式：　　第一种形式的trap命令在shell接收到signal list清单中数值相同的信号时，将执行双　...

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更新时间 2022-08-12 10:53:08

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