DSLab: Data Science Laboratory

UNIX Tutorial

Typographical conventions
In what follows, we shall use the following typographical conventions:

  • Characters written in bold typewriter font are commands to be typed into the computer as they stand.
  • Characters written in italic typewriter font indicate non-specific file or directory names.
  • Words inserted within square brackets [Ctrl] indicate keys to be pressed.
So, for example,
% ls anydirectory [Enter]
means "at the UNIX prompt %, type ls followed by the name of some directory, then press the key marked Enter"
Don't forget to press the [Enter] key: commands are not sent to the computer until this is done.
Note: UNIX is case-sensitve, so LS is not the same as ls.

The same applies to filenames, so myfile.txt, MyFile.txt and MYFILE.TXT are three seperate files. Beware if copying files to a PC, since DOS and Windows do not make this distinction.
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