Short and Sweet Guide to the UNIX Command Line

This is intended as a very minimal guide to getting around the UNIX command line with minimum pain.
Here are the commands we feel will be most useful to you in our classes and projects:

• ls: lists files in the current directory (folder)
• ls -a: list all files, including hidden ones
• pwd: print working directory (tells you where you are!)
• cd [dirname]: change directory to [dirname]
• cp [file1] [file2]: copies [file1] to [file2]
• mv [file1] [file2]: move [file1] to [file2] (file1 will be gone!)
• rm [file]: remove [file]
• cat [file]: dumps file to stdout
• echo $var: displays value of $var
• find . -name [file]: look for [file] in or under current directory
• grep <pattern> [files]: search for <pattern> in [files]
  Example: grep [a-z][0-9] *.py
  Finds strings like 'h1' or 'z9' in python files.

Some git specific commands:

• git init: create a new git repository (repo)
• git add [files...]: adds a list of files to the repo you are currently in -- will fail if you are not in a repo folder!
• git commit -a -m "Your message here.": commits all changed files to the current repo.
• git push origin master: pushes your changes to the "origin" repo: in our case, that is GitHub
• git pull origin master: pull changes from the origin repo (in our case GitHub) to the machine you are on