How to denote that a command line argument is optional when printing usage

How to denote that a command line argument is optional when printing usage

unix command-line arguments

unix

How do I use Head and Tail to print specific lines of a file

shell unix arguments tail unix-head

unix

Pass file content to docker exec

linux shell unix command arguments

unix

How to get the second last argument from shell script?

bash unix arguments sh

unix

BASH shell expand arguments with spaces from variable [duplicate]

bash shell unix arguments spaces

unix

How to take multiple argument in bash and pass them to awk?

bash function unix awk arguments

unix

bash script echo arguments into separate lines

bash unix scripting arguments lines

unix

How to use git add or git lfs track A LOT of files

git bash unix arguments git-lfs

unix

unix - how to deal with too many args for cat

unix arguments cat

unix

Passing multiple arguments to a UNIX shell script

bash shell unix arguments

unix

UNIX - why doesn't $# include the command (thus always being >= 1)?

bash unix arguments

unix

Grep with multiple arguments

unix grep arguments

unix