How to clear the current command line in Linux or Mac terminal?
For example, if you typed a bunch of instructions wrongly, and you want to clear them,
Be sure to do the same as I used to, use the reverse key to kill slowly, we can use ctrl+u
Remove the entire command line directly.
If you press ctrl+u to delete the entire line command,
If you want to restore , you can press ctrl+y .
Sometimes we need to generate a random password, but do not know what to use? Here is a simple bash that allows us to easily generate a set of passwords on the terminal.
The instructions are different on MacOS or Linux, but achieve the same effect. Let's see how to display yesterday's date with the date command.
Detect whether selinux is enabled in the system
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