Linux的重复命令自动 [英] Linux repeat command automatically

问题描述

是Linux命令行有可能有一个命令重复每隔n秒。

Is it possible in linux command line to have a command repeat every n seconds.

举例来说，假设我有一个导入运行和我做

For example, say I have an import running and i am doing

ls -l

检查文件大小在不断增加。我想有一个命令有这个自动重复。

to check the file size is increasing. I would like to have a command to have this automatically repeat.

推荐答案

观看每5秒...

看-n 5的ls -l <​​/ code>

watch -n 5 ls -l

如果你希望有变化的视觉确认，追加 - 差异之前的 LS 命令

If you wish to have visual confirmation of changes, append --differences prior to the ls command.

据OSX的手册页，这里还有

According to the OSX man page, there's also

该--cumulative选项使突出粘，presenting一个
  运行曾经更改的所有位置的显示。该-t
  或--no标题选项关闭显示的时间间隔的头，
  命令，并在显示器的顶部当前时间，以及所述
  下面的空行。

The --cumulative option makes highlighting "sticky", presenting a running display of all positions that have ever changed. The -t or --no-title option turns off the header showing the interval, command, and current time at the top of the display, as well as the following blank line.

的Linux / Unix手册页，可以发现这里

Linux/Unix man page can be found here

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