Lecture 1: 12 Jan, 2009

Khaled Harras

Administrative

ssh (using ssh, found in All Programs:X-Win32) to unix.qatar.cmu.edu and log yourself in
discuss some common UNIX (and AFS) commands:
- ls - list files
- man - manual (help pages)
- cd - change directory
- pwd - print working directory
- cat - show the contents of a file (discuss '>' redirection)
- more - a more civilized cat (less is more)
- cp - copy a file (discuss tab-completion)
- mv - move (rename) a file
- rm - remove a file (discuss the '*' wildcard - be careful out there!)
- mkdir - make a directory
- rmdir - remove a directory
- fs - examining and setting directory and file access privileges (rlidwka; but use fs help, not man fs!)
aliases, .cshrc, and .emacs - before we get started, we need to move a few files, so make sure you're in your home directory (cd or cd ~), and
1. cp ~kharras/www/courses/15123/123-dist/emacs .emacs
Notice the subtle difference between ~/ and ~ without the slash!
Once we've copied the two files, we'll tell the operating system to use the .cshrc file in the current shell by executing the command: source .cshrc. This will make life a little better and you can feel free to modify your .cshrc file once you start to acquire a sense of what commands you'd like to alias to what shortcuts.

if you have a laptop, and want help configuring it, bring it to recitation tomorrow
Here's an emacs reference sheet so we can move around in the editor (a venerable, line-oriented text editor, very much unlike Eclipse). Some people prefer vi (or its new and improved cousin, vim.