How to execute multiple commands at the same time in the linux command line

;Separated by a semicolon, it means that the command must be executed regardless of whether it is successfully executed or not. Separated by

[root@localhost /]# date;date;date 2019年 05月 03日 星期五 09:08:37 CST 2019年 05月 03日 星期五 09:08:37 CST 2019年 05月 03日 星期五 09:08:37 CST

&&symbols, it means that the commands are executed in sequence. If one of them fails, the execution will exit, similar to break in a loop.

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[root@localhost /]# date&& data&&date 2019年 05月 03日 星期五 09:09:03 CST -bash: data: 未找到命令

||symbols are separated, indicating that the commands are executed in sequence, as long as one of them is executed successfully, Exit execution.

[root@localhost /]# date||date||date 2019年 05月 03日 星期五 09:09:24 CST [root@localhost /]# data||date||ls -bash: data: 未找到命令 2019年 05月 03日 星期五 09:09:42 CST

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