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"ls" is a linux command to list the files in the current directory or at the
directory at a specific path. "ls" will display the files in the current
directory and if you add "-a" to the command (ls -a) will display hidden
files too. To specify a specific path add the path after "ls" and before the
"-a" if there is one: "ls /path/to/folder" or "ls /path/to/folder -a"