| A | B |
|---|
| pwd | print working directory |
| hostname | the computer's network name |
| mkdir | make a directory |
| cd | change directory |
| ls | list directory contents |
| rmdir | remove directory |
| cp | copy file or directory |
| mv | move a file or directory |
| cat | prints full file |
| man | read a manual page |
| env | look at your environment |
| echo | print the arguments |
| export | export/set a new environment variable |
| exit | exit the shell |
| sudo | become super root user |
| chmod | change file permissions |
| chown | change file ownership |
| df | display file system usage |
| du | displays estimates of file space usage |
| top | display most active processes |
| kill | sends a signal to a process, usually "terminate" |
| vmstat | display virtual memory statistics |
| netstat | display network connections, routing tables, interface statistics |
| nslookup | query internet name servers |
| ps | display a snapshot of the current processes |
| ping | send network echo commands to hosts |
