Use systemctl for `pihole restartdns` if available

Signed-off-by: Christian König <ckoenig@posteo.de>

1 files changed, 13 insertions, 1 deletions

diff --git a/pihole b/pihole
index 1047d152..b9952049 100755
--- a/pihole
+++ b/pihole
@@ -23,6 +23,14 @@ source "${colfile}"
 utilsfile="${PI_HOLE_SCRIPT_DIR}/utils.sh"
 source "${utilsfile}"
 
+is_command() {
+    # Checks to see if the given command (passed as a string argument) exists on the system.
+    # The function returns 0 (success) if the command exists, and 1 if it doesn't.
+    local check_command="$1"
+
+    command -v "${check_command}" >/dev/null 2>&1
+}
+
 webpageFunc() {
   source "${PI_HOLE_SCRIPT_DIR}/webpage.sh"
   main "$@"
@@ -139,7 +147,11 @@ restartDNS() {
     fi
   else
     # A full restart has been requested
-    svc="service pihole-FTL restart"
+    if is_command systemctl ; then
+        svc="systemctl restart pihole-FTL"
+    else
+        svc="service pihole-FTL restart"
+    fi
     str="Restarting DNS server"
     icon="${TICK}"
   fi