better method of running without root privileges

sshbackup

@@ -23,6 +23,7 @@ sshkey=0
 bandwidth=0
 limit=0
 list=0
+noroot=0
 options=$*
 
 
@@ -50,6 +51,8 @@ usage()
     echo "   -s, --sshkey <file>       alternate sshkey [~/.ssh/id_rsa]"
     echo "   -b, --bandwidth <kbps>    bandwidth limit in kbit/s"
     echo
+    echo "   -n, --no-root             run without root privileges"
+    echo
 }
 
 version()
@@ -78,10 +81,9 @@ amiroot()
 preflight()
 {
     #amiroot?
-    if ( ! amiroot ); then
-        echo "warning: in order to conserve owner and group attributes"
-        echo "warning: you need to run sshbackup as root."
-        return 0
+    if ( ! amiroot ) && [ $noroot -eq 0 ]; then
+        echo "aborting mission. you need be root or use the --no-root option."
+        return 1
     fi
 
     #source and destination path?
@@ -218,6 +220,9 @@ for option in $options; do
         -b|--bandwidth)
             bandwidth=1
             ;;
+        -n|--no-root)
+            noroot=1
+            ;;
         *)
             if [ $config -eq 1 ]; then
                 if [ -r "$option" ]; then