diff --git a/content/articles/instalar-un-gestor-de-maquinas-virtuales-en-hyperbola-gnulinux-libre.md b/content/articles/instalar-un-gestor-de-maquinas-virtuales-en-hyperbola-gnulinux-libre.md
index d08ba6c..6dcb3e4 100644
--- a/content/articles/instalar-un-gestor-de-maquinas-virtuales-en-hyperbola-gnulinux-libre.md
+++ b/content/articles/instalar-un-gestor-de-maquinas-virtuales-en-hyperbola-gnulinux-libre.md
@@ -61,7 +61,7 @@ caso contrario su ordenador no es capaz de virtualizar.
 
 ### Revisar el grupo kvm
 
-    # cat /etc/libvirt/qemu.conf | egrep 'group="kvm"|group="78"'
+    # grep -E 'group="kvm"|group="78"' /etc/libvirt/qemu.conf
 
 Comprobar si existe `group="kvm"` o `group="78"`