Sure, using the Linux command line is optional. But these are commands I depend on every day. See what you think.

On Linux, the umask defines how new files and directories inherit access rights. Linux uses your current umask value to determine which permissions to mask (remove) from the base permission. The umask ...

I've shown you the basics of each command. When you first start using Linux, that's all you'll need. However, as you keep going, you might need to use the more advanced features of those commands. The ...