refactored if statements to switch case

pman.sh

@@ -45,9 +45,11 @@ if [ "$command" = "" ]; then
 fi
 
 # Evaluate the command arguments
-if [ "$command_args" = "search" ]; then
+case "$command_args" in
+  "search")
     command_args="-Ss"
-elif [ "$command_args" = "provides" ]; then
+    ;;
+  "provides")
     # Update the cache
     su_needed=true
     command_args="-Fy"
@@ -55,36 +57,45 @@ elif [ "$command_args" = "provides" ]; then
 
     su_needed=false
     command_args="-F"
-elif [ "$command_args" = "installed" ]; then
+    ;;
+  "installed")
     command_args="-Q"
-elif [ "$command_args" = "install" ]; then
+    ;;
+  "install")
     command_args="-S"
     if [ "$command" = "pacman" ]; then
       su_needed=true
     fi
-elif [ "$command_args" = "update" ]; then
+    ;;
+  "update")
     command_args="-Sy"
     if [ "$command" = "pacman" ]; then
       su_needed=true
     fi
-elif [ "$command_args" = "upgradable" ]; then
+    ;;
+  "upgradable")
     command_args="-Qu"
-elif [ "$command_args" = "upgrade" ]; then
+    ;;
+  "upgrade")
     command_args="-Syu"
     if [ "$command" = "pacman" ]; then
       su_needed=true
     fi
-elif [ "$command_args" = "remove" ]; then
+    ;;
+  "remove")
     command_args="-Rs"
     if [ "$command" = "pacman" ]; then
       su_needed=true
     fi
-elif [ "$command_args" = "purge" ]; then
+    ;;
+  "purge")
     command_args="-Rns"
     if [ "$command" = "pacman" ]; then
       su_needed=true
     fi
-elif [ "$more_arguments" = "true" ]; then
+    ;;
+  *)
+    if [ "$more_arguments" = "true" ]; then
       echo "Invalid command: \"$command $command_args\""
       echo
       echo "Usage: pman <command> [args...]"
@@ -104,5 +115,7 @@ elif [ "$more_arguments" = "true" ]; then
       echo "  config     - /etc/pacman.conf | edits pacman configuration"
       exit 1
     fi
+    ;;
+esac
 
 execute_command "${@}"