set PATH=JAVA_HOME\bin;%PATH%For example with the default jdk installation it would be
set PATH=c:\jdk1.3\bin;%PATH%If the file doesn't exist, create it, if it exists, just add the line at the end.
setenv CLASSPATH MY_PACKAGES/tio.jar
If you have already defined CLASSPATH in your .cshrc file then just append
:MY_PACKAGES/tio.jar to the end of the current CLASSPATH string.
jar xf tio.jar