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Command Line Shortcuts File Globbing wildcard Expansion | Shortcut Tab key Linux

The uses of wildcard allow one pattern to expand to multiple filenames by a process called globbing.
Example if you like to remove file with extension .mp3
#rm *mp3
* matches zero or more character
? matches single character
(0-9) matches range of numbers
(system) matches any character like system
(^client) allow character all except the character in the list.

Tab key it is complete either a command name or file name.
#ls st
Then it is complete the command in Linux
#ls student.txt

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