>>130 1. C-shell is a shell work which Mr. Charie done in 1231. This was very good antique. But nowaday,all the work is said to be completely lost at war. 2. .cshrc is type C semi-heuristic release candidator. By using this, you can make Microsoft .Net application very easily. 3. path is powerful approach to the housework. This is for ubiqutas computing. This system provide you to do some of your housework from your PC.