Useful UNIX Commands

CSE 230

File Commands

• cp - copy a file
% cp file1 file2
copies the file file1 into a new file called file2
% cp file dir
copies the file file into the directory dir



• more - display a file
% more file
displays the contents of the file file; press q to quit



• mv - move a file
% mv file1 file2
changes the name of the file file1 to file2
% mv file dir
moves the file file in the directory dir



• rm - remove a file
% rm file
delete the file file

Directory Commands

• cd - change a directory
% cd dir
changes to the directory dir
% cd ..
changes to the parent directory of the current directory
% cd
changes to the home directory



• ls - list a directory
% ls dir
list the contents of the directory dir
% ls -l dir
list the contents of the directory dir in detail: permission, size, time, …
% ls
list the contents of the current directory



• mkdir - make a directory
% mkdir dir
create a new directory called dir



• rmdir - remove a directory
% rmdir dir
removes the directory dir, which must be empty

Submission Command

• All labs are submitted to grading directories by using the submit command

% submit c230aa lab0 hello.cc

• A successful message very similar to the following should appear afterwards

(user name) you have submitted lab0
For c230aa at Wed Jan 1 00:00 EST 2004
The following files have been submitted to (user name):

-rw------- 1 cisgrad 135 Jan 1 00:00 hello.cc

• At this point, if you see any error messages, then you must resubmit correctly

Send all files every time you (re)submit a lab; do not send them in groups or one-by-one