add -q to grep

2015-08-21 14:50:09 +02:00
parent b175d5a01c
commit 36f930fc2f
1 changed files with 1 additions and 1 deletions
--- a/scripts/install
+++ b/scripts/install
@@ -78,7 +78,7 @@ export DEBIAN_FRONTEND=noninteractive
 # Based on https://wiki.debian.org/WiFi#USB_Devices
 if [ "${firmware_nonfree}" == yes ]; then
  # check if non-free is set on sources.list
-  if ! grep non-free /etc/apt/sources.list ; then
+  if ! grep -q non-free /etc/apt/sources.list ; then
    sed -i -e '0,/main/{s/main/main non-free/}' /etc/apt/sources.list
    apt-get update
  fi