Basic Unix

Here are some basic Unix commands to help you get started:

Commands

ls - lists the content of a directory
pwd - shows you the current working directory
cp - copies a file
mv - moves or renames a file
cd - changes a directory
ps - prints a process list
kill - kills a process
man - show a manual page (help)
mkdir - makes a directory

Some other useful utilities:

gcc - the gnu c compiler nedit - simple visual editior

Directory shortcuts:

~ - your home directory
~aca319 - units homedirectory
.. - a previous directory
. - current directory

Wildcards:

They work bit like in dos, but much more powerful expressions can be created. To start with,
* is everything
? is single character.
etc.

Some Examples of Usage:

cp ~aca319/source/test.c .
Copies the test.c file from the units directory to your current working directory (cwd)

cp ~aca319/doc/Lab1.pdf ~/aca319/
Copies the lab manual to a directory aca319 in your home directory

rm test.bak
[removes the test.bak from cwd]

rm *
removes everything from cwd ... use with caution

mv test.c test.bak
renames test.c into test.bak

ls *.c
Shows the listing of all the C files in the current directory.

mkdir aca319
cd aca319
cd ..

creates a subdirectory aca319, goes into it and goes out

gcc -o test test.c
compiles test.c and makes an executable test BE AWARE: test is also a unix command so to execute the one you have created you will have to use ./test (generally to execute the programs from your current working directory you will have to use ./file where ./ just means current directory)

man man display the manual page for the man utility

nedit test.c &
Opens editing session for test.c as a separate process, so that you can still use your Unix shell.

For more info use man, surf the web, or get a unix book.