diff --git a/Commands.md b/Commands.md
index 4ff1299..faca6d2 100644
--- a/Commands.md
+++ b/Commands.md
@@ -7,6 +7,13 @@ xzname=$imgname.xz
 sizes=sizes-$imgname-$xzame.txt
 checksums=sha256sum-$imgname-$xzname.sha256
 
+# get real username (not root) if run with sudo
+if [ ! -z $SUDO_USER ]; then
+    username=$SUDO_USER
+else
+    username=$USER
+fi
+
 lsblk
 echo "Enter disk name (including /dev/) ex /dev/sdb"
 read dadisk
@@ -18,13 +25,21 @@ webhook "Copied the disk to $imgname ($imgsize), compressing to $xzname"
 sudo pishrink.sh -v -Z -a $imgname
 xzsize=$(du -h $xzname)
 
-webhook "$imgname ($imgsize) shrunk to $xzname ($xzsize), calculating sha256 checksums..." true
+webhook "$imgname ($imgsize) shrunk to $xzname ($xzsize), calculating sha256 checksums..."
 sha256sum $imgname | tee $checksums
 sha256sum $xzname | tee -a $checksums
 
 webhook "getting sizes"
 echo -e "imgsize: $imgsize\nxzsize: $xzsize" | tee $sizes
 
+echo "changing perms"
+sudo chown $username:$username $xzname
+
+webhook "testing archive $xzname"
+xz -t $xzname
+ret=$?
+webhook "test status: $ret"
+
 webhook "DONE\n\tdisk: $dadisk\n\timgname: $imgname ($imgsize)\n\txzname: $xzname ($xzsize)" true
 sudo shutdown -r +1
 ```