Linux Command Bash Basics (command completion vs. hash cache)

Enter the command. Then press the TAB key to implement the command auto-completion, and a command to complete the command. There are multiple matching commands that are listed as a list,

For example:

Input command, IP, will list all the commands that begin with IP,

After the command executes, it is saved to a command cache file directory called hash.

Can be viewed by hash, to see the help of the hash command, helping hash,

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Linux Command Bash Basics (command completion vs. hash cache)