diff --git a/mac-addr.sh b/mac-addr.sh
new file mode 100644
index 0000000..8f417db
--- /dev/null
+++ b/mac-addr.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+hardware=""
+
+sudo ip link set dev wlo1 down
+# shuts down wifi
+if [ -z "$1" ]; 
+then 
+    echo "No mac address provided, assigning default value."
+    sudo ip link set dev wlo1 address 00:1d:98:5a:d1:d3;
+    
+    # if program was not run with an argument, assign this mac address
+else 
+    if [ "$1" == 0 ]; 
+    then 
+        echo "Resetting mac address."
+        sudo ip link set dev wlo1 address $hardware;
+        # if program was run with "0" as an argument, assign hardware mac address 
+    else
+        string=$1
+        mac=${string:0:2}:${string:2:2}:${string:4:2}:${string:6:2}:${string:8:2}:${string:10:2}
+        sudo ip link set dev wlo1 address $mac;
+        echo "New mac address is $mac."
+        # if program was run with a string, use that string as mac address
+    fi
+fi
+sudo ip link set dev wlo1 up
+# start up wifi
\ No newline at end of file