ls - Wikipedia
https://en.wikipedia.org/wiki/Ls
In computing, ls is a command to list computer files in Unix and Unix-like operating systems. ls is specified by POSIX and the Single UNIX Specification.When invoked without any arguments, ls lists the files in the current working directory.The command is also available in the EFI shell. In other environments, such as DOS, OS/2, and Microsoft Windows, similar functionality is …
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