diff --git a/homework/linux.txt b/homework/linux.txt
index 85bac85..b5522ac 100644
--- a/homework/linux.txt
+++ b/homework/linux.txt
@@ -29,7 +29,7 @@ $ cat selected.txt commands.txt
   948  ls
   949  cd ..
   950  clear
-  951  wc -l processes.txt | selected.txt
+  951  grep -c . processes.txt | selected.txt
   952  touch selected.txt
   953  wc -l processes.txt | selected.txt
   954  wc -l processes.txt &> selected.txt