I'm doing key generation in a sort of batch mode with GnuPG (don't ask why):echo -e 'addkey\n4\n2048\n120d\nsave' | gpg --command-fd 0 \    --edit-key $master_key_id >/dev/null 2>&1I still see all of the output here and I'd like to make it go away.I'm trying to read their documentation to see which file descriptor they're writing to, but so far no success.How can I redirect ALL of the output to /dev/null? 
Redirect all GnuPG output to /dev/null
bash;io redirection;gpg