Port Check

port check

• #!/bin/bash
  
  CHECKREMOTESERVERSLIST=checkServerPortList.txt
  TIMEOUT=2
  
  OLDIFS=$CHECKREMOTESERVERSLIST
  IFS=,
  
  while read -a line;
  do
      r=$(timeout 2 bash -c 'exec 3<> /dev/tcp/'${line[0]}'/'${line[1]}';echo $?' 2>/dev/null)
       #l_TELNET=`echo "quit" | telnet ${line[0]} ${line[1]} | grep "Escape character is"`
       if [ "$r" = "0" ]
       then
            echo "Success !"
      else
           if [ "$r" = "1" ]
           then
                echo "Checked"
            else
                 echo "Failed"
            fi
      fi
  done <$CHECKREMOTESERVERSLIST
  IFS=$OLDIFS