Check grep return code

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0

My script contains following sets in place:

set -o errexit
set -o pipefail
set -o nounset

Now I would like o grep (not sed, awk, etc) for letter A in file b, and add the result to the file c:

grep A b >> C

The problem is that grep exits with RC 1 if no A is found in b file, which in my case is fine as I don't see that as an issue. In that case I wrapped grep command in a function and run:

function func_1() {
  grep A b >> C
}

if func_1; then
  echo "OK"
else
  echo "STILL OK"
end

Everything works great, but soon I realised it would be nice to catch RC=2 (grep failure). How can I do that?

asked 2 mins ago

meso_2600

370

Check grep return code