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.

Free video tutorial sharing: linux video tutorial

[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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