.bashrc: add sudoloop alias

.bashrc.d/10_common_aliases.sh

@@ -81,6 +81,17 @@ function dumpargs() {
     done
 }
 
+# Loop sudo to avoid entering password again
+function sudoloop() {
+    # Run once in foreground to enter password
+    sudo -v || return 1
+    # Run loop in background
+    { while true; do
+        sudo -v || return 1
+        sleep 60
+    done } &
+}
+
 # Shortcuts to encode/decode strings with base64
 function b64enc() {
     echo -n "$1" | base64 -w 0