Fix to

Xevel · Xevel · commit 3c9a032c76fe · 2016-06-05T06:50:11.000+02:00
diff --git a/linux/filesystem/backup.md b/linux/filesystem/backup.md
@@ -67,7 +67,7 @@ sudo dd bs=4M if=/dev/sdb | gzip > rasbian.img.gz
 To restore, pipe the output of `gunzip` to `dd`:
 
 ```bash
-sudo gunzip --stdout rasbian.img.gz | dd bs=4M of=/dev/sdb
+gunzip --stdout rasbian.img.gz | sudo dd bs=4M of=/dev/sdb
 ```
 
 See more about [installing SD card images](../../installation/installing-images/README.md).
