First and most important question: what is Wildcard in Linux?
Answer is wildcard is specific symbol use in Linux terminal for replacing numbers and letter for example:- * (star), ? (question mark), [ ] (square brackets), { } (curly brackets), [!] (bang), \ (backslash) etc.
We will see how to user this symbol with example
In this article I use only ls command you can use any command because pattern is same for all command.
How to use * (star) wildcard in Linux
* (star) wildcard most usable because star replace every latter number including zero.
.* (dot and star)
* (star)
How to use ? (question mark) wildcard in Linux
After star wildcard ? (question mark) is most usable below see the how to use question mark.
?.txt
??.txt
file?.*
How to use [ ] (square brackets) wildcard in Linux
ip[1]*
ls [1].txt
ls [A]*.txt
ls file[12345] or ls file[1-5]
ls [A]*.txt
