Linux command and its uses

uuname-r = saw kernel version
x cd or cd / x = go to the directory x
cd/.. or cd .. / or cd / .. = Move to the directory one level below
x then [tab] [tab] == useful to know what's
available commands beginning with the letter x
adduser = to add a new user
ls or dir = to view the contents of a directory
cat = to view the contents of a text file
xy = mv to move or merename file x to file y
xy = cp to copy a file x to file y
rm to delete files x = x
mkdir to create directories x = x
rmdir to delete directories x = x
rm-rx = x to delete the directory and all its contents
p = rm to remove a particular package
df or df x = to find an empty space in the device x
top = to know the memory status (press q to quit)
x = man to know the information manually from a command
less x = to view the contents of a text file
echo x = to print the contents of a file to the screen x
mc = to turn Norton Commander in Linux (very useful and easy for the newbie)
mount = to turn on a device like cdrom
halt = for shutdown
reboot or [CTL + alt + del] = to reboot
chmod = to change the permissions of a file
ls-lx = to view the detailed contents of a directory
ln-sxy = to create a link from a file x to file y
find x-name y-print = y to find the file, begin the search from the directory x and
display the results on screen
ps = to view all running processes
kill to kill the process x = x (x is PID in ps)
[Alt] + F1 - F7 == to move from the terminal 1-7 (typical of Linux)
lilo = to create a boot disk
= startx to run X-Windows
[CTL] + [alt] + [backspace] == to get out of the X-Windows if there is trouble
[CTL] + [alt] + F1 - F6 = to move from one terminal to another terminal under X-Windows
XF86Config to set X = (primitive) in text mode
Xconfigurator = same as above.

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