Unix filesystem

Bash, or the born again shell, is a very popular and well-documented command line shell environment for working in the Unix filesystem, and consists of directories (like folders) and files. There are many good overviews to the shell environment I prefer: bash or the born-again shell. The internet is full of great tutorials on unix and bash commands and scripting.

Key commands to get familiar with:

1. mkdir, rmdir
2. ls
3. cd, pwd
4. cp, mv, rm
5. echo, cat
6. ./, ../ (not commands but names of special directories)
7. man

A brief exercise:

1. Print a brief greeting to the screen, traditionally “Hello, World!”
2. Save that message to a file using redirection, > file
3. Create a new directory named dir
4. Move file containing your message to the new directory dir
5. Change directories to dir
6. Check that the file is in ./ not ../
7. Double-check the contents of file
8. Remove dir and file.