Basic UNIX Commands

• A more detailed UNIX reference sheet can be found here.
  
  
• Directory commands:

ls	Lists the contents of the current directory
pwd	Shows the path of the current directory
cd [target]	Changes into a new directory
cd	With no target, cd will change the current directory to your home directory
mkdir [target]	Creates the target directory in the current directory
rm -r [target]	Removes the target directory



• File commands:

rm [file]	Removes the target file
cat [file]	If target file is a text file, prints it out to STDOUT.
diff [file1] [file2]	Compares two text files line by line and finds their differences. If files are the same, outputs nothing. If files are different, outputs lines that differ.



• Miscellaneous commands:

ssh [host_name]	Opens a secure-shell (ssh) connection to a remote host. For instance, typing 'ssh thunder.cise.ufl.edu' will log you in to the CISE server 'thunder'.
man [command_name]	Displays the manual (help) pages about a UNIX command
javac/java	These are the commands to run the java compiler and interpreter, respectively.
Text editors	You can use gedit. Two basic text editors available from the UNIX command-line environment are 'emacs' and 'nano'. More information about the editors is available on their manpages, or check online. The best way to familiarize yourself with these editors is just to play around with them.

Windows SSH/SCP Clients

Putty	A free ssh client. The department has a great tutorial online here
WinSCP	A free program to copy files between a Windows machine and a UNIX machine. Available online here
Tutorials	The CISE department maintains more information about secure remote access here

NOTES

• A full list of the departmental servers is available here. For this class, we will do all of our project grading on thunder, so we highly recommend that you test your code before submission on 'thunder' or one of the other machines ('storm').
   
• To remotely login from a machine using MacOSX, simply open a terminal on your machine and use the text-based ssh. However, you should note that to ssh to a different domain, you will need to include your username in the command such as 'user@host.cise.ufl.edu'. For graphical file transfer between Macs and UNIX, try the program 'cyberduck'.