diff --git a/sources/tech/20150528 27 'DNF' Fork of Yum Commands for RPM Package Management in Linux.md b/sources/tech/20150528 27 'DNF' Fork of Yum Commands for RPM Package Management in Linux.md
index dc81fef219..2ada2ac4cd 100644
--- a/sources/tech/20150528 27 'DNF' Fork of Yum Commands for RPM Package Management in Linux.md	
+++ b/sources/tech/20150528 27 'DNF' Fork of Yum Commands for RPM Package Management in Linux.md	
@@ -1,3 +1,5 @@
+translating by wwy-hust
+
 27 ‘DNF’ (Fork of Yum) Commands for RPM Package Management in Linux
 ================================================================================
 DNF aka Dandified YUM is a next generation Package Manager for RPM based Distribution. It was first introduced in Fedora 18 and it is replaced [YUM utility][1] in recent release of Fedora 22.
@@ -284,4 +286,4 @@ via: http://www.tecmint.com/dnf-commands-for-fedora-rpm-package-management/
 [a]:http://www.tecmint.com/author/avishek/
 [1]:http://www.tecmint.com/20-linux-yum-yellowdog-updater-modified-commands-for-package-mangement/
 [2]:http://www.tecmint.com/dnf-next-generation-package-management-utility-for-linux/
-[3]:http://www.tecmint.com/systemd-replaces-init-in-linux/
\ No newline at end of file
+[3]:http://www.tecmint.com/systemd-replaces-init-in-linux/