diff --git a/fs/sbin/hdfs-lib.sh b/fs/sbin/hdfs-lib.sh
index 528d36f..750822e 100755
--- a/fs/sbin/hdfs-lib.sh
+++ b/fs/sbin/hdfs-lib.sh
@@ -30,9 +30,8 @@ function with_backoff() {
   local attempt=0
   local exitCode=0
 
-  while (( $attempt < $max_attempts ))
-  echo "Attempt $attempt of $max_attempts: $@"
-  do
+  while [ $attempt -le $max_attempts ]; do
+    echo "Attempt $attempt of $max_attempts: $@"
     set +e
     "$@"
     exitCode=$?
@@ -51,6 +50,8 @@ function with_backoff() {
 
   if [[ $exitCode != 0 ]]; then
     echo "Fail: $@ failed to complete after $max_attempts attempts" 1>&2
+  elif [[ $exitCode -gt 128 ]]; then
+    echo "Fail: $@ aborted by user" 1>&2
   else
     echo "Success: $@ completed after $attempt attempts" 1>&2
   fi