Script

#!/bin/bash

clearFiles() {
  rm *.dat
  if [ $? -eq 0 ]
  then
    echo Files deleted
  fi
}

genFiles() {
  for (( i=1; i<=$1; i++ ))
  do
    head -c ${i}M </dev/urandom >myfile${i}mb.dat
  done
  ls -l *.dat
}

delFiles() {
for f in *.dat
  do
    size=$(( $(stat -c %s $f) /1024/1024 ))
    if [ $size -gt $1 ]
    then
      rm $f
      echo Deleted file $f
    fi
  done
  ls -l *.dat
}

showWeather() {
  curl -s "https://weather-broker-cdn.api.bbci.co.uk/en/observation/rss/$1" | grep "<desc" | sed -r 's/<description>//g; s/<\/description>//g'
}

menu() {
  clear
  echo 1 - Delete all .dat files
  echo 2 - Generate .dat files
  echo 3 - Delete big .dat files
  echo 4 - List all files
  echo 5 - Planet info
  echo 6 - Show weather
  echo "x/q - Exit"
  echo -n "Choose action: "
  read -n 1 key
  echo
}

while true
do
  case "$key" in
    "x" | "q" | "X" | "Q") break ;;
    "1")
      clearFiles
      read -n 1
    ;;
    "2")
      echo -n "File count: "
      read count
      genFiles $count
      read -n 1
    ;;
    "3")
      echo -n "Delete file greater than (mb): "
      read maxsize
      delFiles $maxsize
      read -n 1
    ;;
    "4")
      ls -la
      read -n 1
    ;;
    "5")
      ./script4.sh
      read -n 1
    ;;
    "6")
      echo -n "Enter city code: " # 524901 498817 5391959
      read citycode
      showWeather $citycode
      read -n 1
    ;;
  esac
  menu
done