Question: I have a java program that I would like to be able to run from anywhere on my machine. I would like to run it from my Cygwin command prompt. I've made scripts to call the java program. I added the location of the java program to the classpath, and the scripts work when I run them from the java program's directory. However, when I try to run from any other directory, I get:

```
java.lang.NoClassDefFoundError: commandprogram/CommandProgram

```

This is my script:

```
#!/bin/sh
CWD=`dirname "$0"`
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram/CommandProgram

```

Changing the java line to the following:

```
java -cp "$CWD/classes;$CWD/classes/commandprogram;$CWD/lib/AJarFile.jar" CommandProgram

```

produces the same results.

Answer: 
After trying just about everything I could think of, I echoed out the command and saw that there was mixing of Cygwin paths and Windows paths. The solution was to change the script to:

```
#!/bin/sh
CWD=`dirname "$0"`
CWD=`cygpath -w "$CWD"`
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram/CommandProgram

```

Then CWD changed to "C:\Program Files\..." instead of "/cygdrive/c/Program\ Files/..."

I had previously encountered this problem and solved it with the `cygpath -w` solution, but then changed my script slightly and didn't notice that the path problem came back.
The usual way of running a java file is to save it in the `Java/Bin` folder and Run `cmd`

```
C:\Program Files\Java\jdk1.7.0_05\bin> javac filename.java && java classname

```

If you save the file in different directory such as `D:`, you can use the following on the cmd prompt:

```
D:\Project java> set path=%path%;C:Program Files\Java\jdk1.7.0_05\bin

```