| Action | DOS | UNIX |
|---|---|---|
| change directory | cd | cd |
| change file protection | attrib | chmod |
| compare files | comp | diff |
| copy file | copy | cp |
| delete directory | rd | rmdir |
| directory list | dir | ls |
| edit a file | edit | pico |
| environment | set | printenv |
| find string in file | find | grep |
| help | help | man |
| make directory | md | mkdir |
| move file | move | mv |
| rename file | ren | mv |
| show date and time | date, time | date |
| show disk space | chkdsk | df |
| show file | type | cat |
| show file by screens type filename | more | more |
| sort data | sort | sort |
Source: Treebeard’s Unix Cheat Sheet
http://www.rain.org/~mkummel/unix.html