Integrating your utility into the shell (linux)

write a script (name: jgrep, chmod to make it executable):

#bin/bash java -jar /var/lib/java/jgrep.jar $*

Put the script somewhere in the PATH (example: /bin/mygrep) and use it:

jgrep param1 param2

Integrating your utility into the shell (windows)

write a script (name: jgrep.bat):

java -jar c:/java/lib/jgrep.jar %*

Put the script somewhere in the PATH (example: c:\windows\system32) and use it:

jgrep param1 param2