Here is a list of basic commands you can use in Unix/Linux

 

Command Function
cat, more, less Print out to the screen the file contents
cd Change working directory
pwd Print current directory
mkdir Create new directory
rmdir Remove directory
yppasswd Change password
ssh Login securely to remote node
exit End terminal session
mail, mailx, Mail Send/Read e-mails
man Unix manual entry for name
ls List files in directory
vi Vi fullscreen editor
emacs Edit a file
mv Move/Rename file
rm Delete (remove) file
cp Copy a file
lpr Print a file
ftp Transfer files over Network
tar Extract/Store files from/into an archive file.
acroread View a PDF file
ghostview, gv View a PostScript file