- Linux
- Relative & Absolute Paths
- Pipe, Pipe with xargs & Redirect
- pwd, cd, ll, ls, mkdir, rmdir, rm, chmod, touch, cksum
- grep, find
- cat, less, more, sort, uniq, head, tail, wc
- env, printenv, export, unset, echo
- ssh and scp, Putty, WinSCP
- Create Jar, Add/Update file in Jar, Delete file from Jar, Extract files from Jar, JD-GUI