jobs命令用于查看linux下正在运行或者停止但未退出的进程任务。为了试验jobs命令,可使用&符号创建后台工作任务。
打开linux命令行控制台,连续输入3次以上命令,系统将创建3个未退出的后台任务。
不加任何参数的jobs命令列出的工作任务列表不带进程号信息。
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图中的 + 符号表示该任务为最近的任务(如果使用fg、bg命令不加job号参数,将默认使用该任务), - 符号表示更前一个任务。
-l参数可列出jobs对应的进程ID信息。
![](data:image/png;base64,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)
使用“fg %JOB_NUM”命令可将后台任务重新激活到前台运行。
可以使用kill命令杀死某个任务,如“kill -9 %JOB_NUM/进程ID”命令可强制退出某个任务。
“jobs -x CMD %JOB_NUM”命令可运行CMD命令,同时将参数%JOB_NUM替换成对应的进程号。
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