Script with Sed to delete a selective line in a file

Here is my script ubuntu@chefnode7:~$ cat [login to view URL] #!/bin/bash echo "###############################################################################" echo "Setting Entry in /etc/hosts v3 " echo "###############################################################################" echo "passed.....$1" echo "passed.....$2" echo "passed.....$3" echo "passed.....$4" echo "passed.....$5" echo "passed.....$6" myentry="$1 $3 $2" mychef="$4 $6 $5" echo "myentry....$myentry" sudo chmod 777 /etc/hosts sudo sed [login to view URL] '/$3/d' /etc/hosts # this line does not work sudo sed [login to view URL] '/$6/d' /etc/hosts # this line does not work sudo echo $myentry >> /etc/hosts sudo echo $mychef>> /etc/hosts sudo chmod 644 /etc/hosts sudo cat /etc/hosts # end of file echo "pass: ip fqdn node ip cheffqdn chefnode" ubuntu@chefnode7:~$ This is something that I need ASAP - only accept if you can do this right now and IM me? We can work together and have a webex? Please note I will pay promptly and leave 5 stars for the project to help me with SYNTAX asap please ?