Answer:
ls -pla > mydir
Step-by-step explanation:
ls is the command to list the contents of the directory.
-p option indicate / as the designator for directories
-l options enables line by line entries for files
-a option lists all files including special files starting with .
> is used for redirecting the output of the ls command to the specified file.
So ls -pla > mydir will run ls command with -pla option and populate the file mydir with the contents of the result.