There are usually two ways to interact with a filesystem: using a GUI (Graphical User Interface) where you point and click, and using a command line where you type commands. In Linux, the command line is called an "xterm".
Unless otherwise specified all files and directories are assumed to be in the current directory. Use the following commands to navigate through the directory structure:
| command | effect |
|---|---|
ls |
list contents of current directory |
cd dirName
| go to directory "dirName" |
cd ..
| go up to parent directory |
cd
| go to home directory |
rm llama |
delete file called "llama" |
mv llama alpaca |
rename file or directory "llama" to "alpaca" |
mv llama a1/ |
mv the file "llama" from the current directory to the subdirectory "a1".
|
mkdir eek |
make a new directory called "eek" |
rmdir eek |
remove the directory called "eek" |
Note: Linux is case sensitive, like Java.
For example, Java and Linux know
that hello, HELLO and hEllO
are not the same.
Although you will likely have already compiled your code from within DrJava, you can also do it in Linux. Type
javac Marf.java
at the prompt, where Marf.java is the java source file.
To run a Java program, type
java Marf
Where Marf is the name of the class containing the
program's main method. Note: Do not type the
.class or .java extension.
You can run javadoc either by changing directories (with
cd) or by specifying the absolute path to the source
files. The following generates the documentation for all the
.java files in the current directory:
javadoc -private *.java
The -private flag generates documentation for the
private members of your classes as well as public members. This is
appropriate when generating documentation for other programmers who
will maintain your code, and may be required for assignments.
Click for detailed documentation for JavaDoc. (This is not required reading.)