adding in support for machine groups

cmd

@@ -1,8 +1,14 @@
 #!/bin/bash
 source config
-for m in `cat $MACHINES` ; do
+if [ -f "$1" ] ; then
+    MACHINE_LIST=$(cat $1)
+    shift
+else
+    MACHINE_LIST=$(cat $MACHINES)
+fi
+for m in $MACHINE_LIST ; do
     if [[ "$m" != "`hostname -s`" ]]; then
 	echo $m:
-	ssh $m $@
+	echo ssh $m $@
     fi
 done

sync

@@ -5,7 +5,11 @@ source ./config
 FILE_LIST=$(cd $SHARED_DIR ; find . -type f | grep -v \\.$ | cut -b 2-)
 
 if [ $# -gt 0 ]; then
-    MACHINE_LIST=$1
+    if [ -f "$1" ] ; then
+	MACHINE_LIST=$(cat $1)
+    else
+	MACHINE_LIST=$@
+    fi
 else
     MACHINE_LIST=$(cat $MACHINES)
 fi