Grep does not have a way to disable "-i", "-n" or "-r" options. Those options could look like this:
-N, --no-line-number
-O, --no-ignore-case
-S, --no-recursive
The single letter choices are not ideal, but "-I" and "-R" were already taken.
If these options existed, you could write a function like this:
grep_bravo() {
grep -i -n -r "$@"
}
then if you passed the new arguments like this:
grep_bravo -N -O -S charlie delta.txt
your arguments would override the function arguments, as they come after.
