linux comman line practice
i'm new to linux and in school we're learning linux commands.
like the grep, cat < file.txt, etc.
i want an application to practice with. i don't know what to look for. even if i did i'm sure someone could recommend the best application to use.
i run mac OS X on my computer, if that'll be important.
(maybe i can run linux commands on my terminal, but first i'm new to the mac itself and linux and i want something like a 'sandbox' so i don't mess anything up on my computer)
any advice will be appreciated. thanks guys.