UNIX Primer
Basic UNIX commands
(prepared by C. J.Young)
|
Command |
Description |
|---|---|
|
ls |
list the current directory |
|
ls -a |
list the current directory, including "hidden" files (which begin with '.') |
|
ls -l |
list the current directory with details |
|
pwd |
tell me the present working directory |
|
cd |
change directory (followed by directory name) |
|
cd .. |
move one directory up in the path |
|
rm |
delete (remove), followed by filename to be deleted |
|
man xxx |
read the manual page(s) for the xxx command |
The .login File
This is your "login" file. It runs every time you log in, and sets up things you need to run your programs. This is a "hidden" file; to view it, you need to be in your home directory, and then execute the command "ls -a" (or "ls -al").
To do the 2D Simulation Lab, you must have the following line in your .login file:
set path=($path /usr/local/SILVACO/bin)
It is a good practice to put additions at the end of the file. Note: Mistakes in the .login file can make it impossible for you to login.
To get these lines into the file, you must open .login in a text editor, of which there are several. To edit .login using the vi editor, for example, execute "vi .login".
The .cshrc File
You may also choose to customize your .cshrc by creating
aliases. For example, the line
alias cde 'cd /Net/hydra/engi_repos1/'
will instruct UNIX to change directories to
/Net/hydra/engi_repos1/ simply by typing
"cde" in the command line. Again, all
changes should be made at the end of the file.
