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 .
This page describes how I removed the old version of Linux Kernel taking up space on ubuntu.
When we use ssh public key authentication, we usually add relevant settings in ~/.ssh/config. If some are used by the company or at home, can multiple configs be used? In fact, it is possible. We can use git to load the company-shared, version-controlled config through Include.
When we use ssh to connect to the host for the first time, a fingerprint confirmation of the host key will be displayed. Sometimes use rsync for some automated scheduling, maybe the remote host has changed and needs to be automatically allowed, How to let ssh automatically allow fingerprints to connect without manually pressing yes in interactive mode?
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