Revise paste Android App Activity Launcher

#!/bin/bash
###################################################################### 
#Copyright (C) 2023  Kris Occhipinti
#https://filmsbykris.com

#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation version 3 of the License.

#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.

#You should have received a copy of the GNU General Public License
#along with this program.  If not, see <http://www.gnu.org/licenses/>.
######################################################################

function error(){                                                                                                                            
  echo $*                                                                                                                                    
  exit 1                                                                                                                                     
}

#check if devices is connected
adb get-state || error "No Devices Connected"

#list packages
list="$(adb shell dumpsys package | grep Activity|awk '{$1=$1;print}')"
list="$(echo "$list"|grep -v "^knownActivityEmbeddingCerts="|rev|awk '{print $1}'|rev)"
app="$(echo "$list"|sort -u|fzf --prompt "Select an Activity: ")"
adb shell am start -a android.intent.action.MAIN -n "$app"