bash shell function to add chrome profile name completion to a "gchrome" command.

.bashrc

function _gchrome_profile() {
  local IFS=$'\n'
  local param=${COMP_WORDS[COMP_CWORD]}
  local profiles=""
  local preffile
  for preffile in ~/.config/google-chrome/{Default,Profile*}/Preferences; do
    # The profile name appears to always be the last "name:" in the json
    # of the Preferences file. Yes, fragile, but appears to work for now.
    local name=$(grep \"name\" "$preffile" | tail -1 | sed -e 's/.*"\([^"]*\)",\?$/\1/')
    profiles="$profiles
$name"
  done
  COMPREPLY=( $(compgen -W "$profiles" "$param") )
}

complete -F _gchrome_profile gchrome