Shell Programming and Scripting

server1,user1,app1
server2,user2,app2
server3,user1,app3
server4,user3,app2
...

<scriptname> -a java

<scriptname> -s server1 server2 server3

"Choose Option 1 to list all servers owned by a user:
 Choose Option 2 to list owner/app of a user:
 Choose Option 3 to list servers running an application:
 Note: Separate multiple entries with a space
    then 
    What is the app: 
Who is the user:
 What is the server: 
  (bam here's the information)"

#!/bin/ksh[/COLOR][/SIZE][/FONT]
 
#read the first command line param to be used as the execution option
option=$1;
#discard the first command line param so it doesn't interfere with the loop later
shift;

#if they didn't enter a valid option, exit
if [ "$option" != "-u" -a "$option" != "-s" -a "$option" != "-a" ]; then
   echo "valid options are -u, -s, and -a";
   echo "-u <username> will list all servers owned by that user";
   echo "-s <hostname> will list the owner/app for the given server";
   echo "-a <app> will list all servers used for a given app";
exit;
fi;

#loop through each of the remaining command line params
for param in "$@"; do
if [ "$option" = "-s" ]; then
   #grep the master list for lines beginning with the given server name
   #display the second and third fields on that line (owner and app respectively)
   echo $param `grep ^$param, test_owner_list | cut -d "," -f 2,3`;
elif [ "$option" = "-u" ]; then
   #grep the master list for lines with a username matching the provided one
   #display the first field on that line (server name)
   echo $param `grep ,$param, test_owner_list | cut -d "," -f 1`;
elif [ "$option" = "-a" ]; then
   #grep the master list for lines that end with the given app name
   #display the first field on that line (server name)
   echo $param `grep ,$param$ test_owner_list | cut -d "," -f 1`;
fi;
done;

select FCT in server user application quit
        do case $FCT in
           ser*) select SRV in $(cut -d, -f1 file4 | sort -u)
                        do grep $SRV file4
                        break
                        done    ;;

           app*) select APP in $(cut -d, -f3 file4 | sort -u)
                        do grep $APP file4
                        break
                        done    ;;

           use*) select USR in $(cut -d, -f2 file4 | sort -u)
                        do grep $USR file4
                        break
                        done    ;;
           quit)        exit;;
           *)           echo "input error; usage:"
           esac
        done