clear i=\"y\" echo \"Enter name of database \" read db while [ $i = \"y\" ] do clear echo \"1.View the Data Base \" echo \"2.View Specific Records \" echo \"3.Add Records \" echo \"4.Delete Records \" echo \"5.Exit \" echo \"Enter your choice \" read ch case $ch in 1)cat $db;; 2)echo \"Enter id \" read id grep -i \"$id\" $db;; 3)echo \"Enter new std id \" iread tid echo \"Enter new name:\" read tnm echo \"Enter designation \" read des echo \"Enter college name\" read college echo \"$tid $tnm $des $college\">>$db;; 4)echo \"Enter Id\" read id # set -a # sed \'/$id/d\' $db>dbs1 grep -v \"$id\" $db >dbs1 echo \"Record is deleted\" cat dbs1;; 5)exit;; *)echo \"Invalid choice \";; esac echo \"Do u want to continue ?\" read i if [ $i != \"y\" ] then exit fi done