unix_survival
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UNIX Command Reference
The command prompt in UNIX is called the shell. Here is a list of common UNIX commands which will work across many different versions of UNIX with discrepancies in Example/Notes.
| Command | Description | Examples | Notes | ||||
| as | ASsembler | as input.s | |||||
| cc | C Compiler | cc input.c | Creates an executable named a.out by default | ||||
| cd | Change working Directory | cd tmp | on Version 6 this command is chdir | ||||
| df | Disk Free | df | Displays summary of free disk space. May take time to complete on some systems | ||||
| ed | EDitor | ed filename | ED is the standard (line) text editor | ||||
| echo | Echo | echo ${HOME} | Prints the value assigned to the variable HOME | ||||
| env | ENVironment settings | env | Displays the shell environment settings (see set)) | ||||
| ld | Link Loader | ld inputfile | |||||
| ls | LiSt directory | ls -l | provides a long LiSting | ||||
| man | MANual | man man | On some systems, displays online manual pages. See also apropos | ||||
| ps | Process Status | ps -a or ps -l | prints All or Long Process Status | ||||
| pwd | Present Working Directory | pwd | Prints the working directory | ||||
| set | SET or display shell parameters | set | Sets or displays the shell environment settings (see env) | ||||
| vi | VIsual editor | vi filename | vi is a screen editor | ||||
On some systems typing games will print a list of games.
| directory | description | ||
| / | This is the top level or root directory | ||
| /bin | common user programs are here (type echo ${PATH} to see more | ||
| /etc | This is the system directory | ||
| /lib | System library files | ||
| /usr | “Unix System Resources” or “USeR” directory, depending on who you ask - contains additional binaries, libraries, manpages | ||
| /usr/games or /usr/local/games | Usually contains the standard UNIX games |
unix_survival.1586373086.txt.gz · Last modified: 2020/04/08 19:11 by joshd
