Stefan Röttger

• cd ..: one directory level up
• mkdir <dir>: make new empty directory
• less <file>: list file contents (if displayable text)
• cp <src> <dst>: copy src to dst
• mv <src> <dst>: move src to dst
• rm <file>: remove files

Wildcards:

• In a path, the asterix * corresponds to an arbitrary character sequence
• The question mark ? corresponds to an arbitrary single character

You can use wildcards to refer to multiple files at once:

• less *: shows all files in the current directory
• rm *: delete all files in the current directory (Caution!)

Other useful commands:

• gzip zip tar find grep ping ftp ssh scp ps top kill du df

When in doubt about the meaning of a particular Unix command, you will find its documentation in the Man-Pages:

• man <command>

Try it out, it is easy:

• man ls

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