Function create UDEV rules for all USB to Serial Devices so that apps such as minicom, screen, gtkterm can access device as normal user

fix-usb2serial.sh

fix-usb2serial() {
  printf "\n\e[1mFix USB to Serial device permissions\e[0m\n"
  local DEVREGX='.*tty[UA].*' W='s'
  declare -ag TTYUSB_DEVS=($(find /sys/class/tty -type l -iregex "${DEVREGX}" -printf "%P\n" 2>&1))
  [[ ${#TTYUSB_DEVS[@]} -ge 1 ]] && { local W=""; } || { printf "\nNo USB to Serial devices found using regex \x22${DEVREGX}\x22.\nQuitting\n\n";return 3; }
  [[ -n $(id -Gn|grep 2>/dev/null -oE dialout) ]] && { printf "\e[2G - User $USER already a member of \x22dialout\x22 group \e[3m(Good\x21)\e[0m\n"; } || { printf "\e[2G -- Adding User $USER to the \x22dialout\x22 group\n"; sudo usermode -aG dialout $USER; }
  printf "\e[2G - Creaing udev rules file: /etc/udev/rules.d/50-ttyUSB.rules\n"
  sudo install -o0 -g0 -m0644 /dev/null /etc/udev/rules.d/50-ttyUSB.rules
  printf "\e[2G - Adding ${#TTYUSB_DEVS[@]} udev rule${W}:\n"
  (printf "%s\n" ${TTYUSB_DEVS[@]}|xargs -I{} printf "KERNEL==\x22{}\x22,\x20MODE=\x270666\x22\n")|sudo tee -a /etc/udev/rules.d/50-ttyUSB.rules|sed -r 's/^/        /g'
  printf "\e[2G - Reloading rules and databases for udev daemon...\n"
  sudo udevadm control --reload
  printf "\e[2G - Listing rule${W} for ${#TTYUSB_DEVS[@]} device${W}\n"
  printf "%s\n" ${TTYUSB_DEVS[@]}|xargs -rn1 bash -c 'sudo udevadm test $(udevadm info -q path -n ${0}) 2>&1|awk '"'"'/^'"'"'${0}'"'"'.*rules/'"'"''|sed -r 's/^/        /g'
  echo
};export -f fix-usb2serial