I figured it would be a great idea to have posted a list of UNIX commands that are necessary, and fundamental. It helped today with the Mac Probook.

Following is a brief list of simple UNIX commands that will help you move around the file system, examine files, copy or delete files, do housekeeping on your account, and communicate with other users on our or other systems. For online help with any command, e.g. the ls command, type man ls .

FILE OPERATIONS:

ls                      list files
cp                      copy files: cp /path/name newname
mv                      move or rename files: mv name newname
rm                      remove (i.e. delete) files: rm name
chmod                   change mode of file permissions: chmod xxx name
cat                     scroll file contents: cat name
more                    page file contents (spacebar to continue): more name
less                    better pager than more? (q to quit): less name
view			view file contents (:q to quit): view name
vi                      visual text editor (:wq to save and quit): vi name
pico                    pico text editor (Ctrl-X to quit): pico name

DIRECTORY OPERATIONS:

mkdir                   make (create) new directory: mkdir Name
cd                      change directory: cd /path/name
cd 			change to your home directory: cd
rmdir                   remove directory (if empty): rmdir Name
pwd                     print working directory (show directory name)
quota                   check disk space quota: quota -v

SYSTEM OPERATIONS:

df                      show free disk space
du                      show disk usage
ps                      list your processes
kill                    kill a process: kill ###
passwd                  change your password
date                    show date and time
w                       who is doing what on the system
who                     who is connected to the system
cal                     display a calendar
ping                    ping another computer (is it alive?)
finger                  get information on users
exit                    exit, or logout, from the system

COMMUNICATIONS:

write                   write messages to another user's screen
talk                    talk split-screen with another user: talk username
pine                    send or read E-mail with pine mail system
mail                    UNIX mail system
rtin                    read news with tin newsreader
telnet                  connect to another computer via the network
ftp                     file transfer over the network

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