complete 8.15

1 files changed, 9 insertions, 0 deletions

diff --git a/README.md b/README.md
index a687fd2..8f6e9ba 100644
--- a/README.md
+++ b/README.md
@@ -349,6 +349,15 @@ formula:
 
 The desired `umask` value would be `027`.
 
+```bash
+[root@2a10b6355d3a ~]# mkdir before
+[root@2a10b6355d3a ~]# umask 027
+[root@2a10b6355d3a ~]# mkdir after
+[root@2a10b6355d3a ~]# ls -l
+drwxr-x---. 2 root root 4096 May 25 19:36 after
+drwxr-xr-x. 2 root root 4096 May 25 19:36 before
+```
+
 See `exercises/chapter-8.15`.
 
 16.  Give chmod command lines that perform the same tasks that the mesg n and mesg y commands do. (Hint: Every hardware device, including your terminal, has an associated file in the /dev directory.)