How can I set my default option for jac?
The default option is set (by default) to -C (see [3p]), but you can change it to any combination of jac options. This/These option(s) will be used any time you will run jac without options, excluding the times you will run jac with a CD which has Cd-specific default options. This is very useful because if you like running jac with many options ($ jac -c -r -v75 -C) you can set this options (-c -r -v75 -C) as your default options and just run jac ($ jac). Your preferred options will be passed to jac from the config file.
