| Command | What it stands for | What it does | To check your work |
| pwd | print working directory | displays the name of your current directory | |
| ls -l | list (long form) | displays contents of your current directory | |
| mkdir dirName | make directory | creates a new directory dirName | ls -l |
| cd dirName | change directory | moves you to directory dirName | pwd |
| cp sourceFile targetFile | copy | makes a copy of sourceFile, called targetFile | ls -l |
| mv sourceFile targetFile | move | renames sourceFile to targetFile | ls -l |
| chmod XXX fileName | change mode | changes permissions on fileName | ls -l |