diff --git a/lib/cli/Actions.js b/lib/cli/Actions.js
index 18a579c7..8c15e8f4 100644
--- a/lib/cli/Actions.js
+++ b/lib/cli/Actions.js
@@ -129,8 +129,9 @@ Actions.prototype._withEach = function (pidOrNames, options, withEach, afterAll)
             // remove the 'Cluster: ' from the cluster manager's name
             name = name.substring('Cluster: '.length)
           }
-
-          if (name === pidOrName || managedProcess.pid === pidOrName || pidOrName === '*') {
+          //pidOrName maybe a number by user input
+          //pidOrname maybe -a -something e,g. so i add remove all command.
+          if (name == pidOrName || managedProcess.pid === pidOrName || pidOrName === '*' || pidOrName === 'all') {
             tasks.push(function (managedProcess, callback) {
               withEach(managedProcess, guvnor, function (error) {
                 if (managedProcess && managedProcess.disconnect) {