diff --git a/rootfs/standard/var/pynode/systemctl_info.py b/rootfs/standard/var/pynode/systemctl_info.py
index 3fa0374d..6cb98ce7 100644
--- a/rootfs/standard/var/pynode/systemctl_info.py
+++ b/rootfs/standard/var/pynode/systemctl_info.py
@@ -1,4 +1,3 @@
-import os
 import subprocess
 from utilities import *
 
@@ -11,13 +10,24 @@ def clear_service_enabled_cache():
     global service_enabled_cache
     service_enabled_cache = {}
 
+def run_systemctl_status_command(command, service_name):
+    return subprocess.run(
+        ["systemctl", command, "--no-pager", "--", str(service_name)],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+    ).returncode
+
 def is_service_enabled(service_name, force_refresh=False):
     global service_enabled_cache
 
     if service_name in service_enabled_cache and force_refresh == False:
         return service_enabled_cache[service_name]
 
-    code = os.system("systemctl is-enabled {} > /dev/null 2>&1".format(service_name))
+    code = subprocess.run(
+        ["systemctl", "is-enabled", "--", str(service_name)],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+    ).returncode
     if code == 0:
         service_enabled_cache[service_name] = True
         return True
@@ -25,14 +35,13 @@ def is_service_enabled(service_name, force_refresh=False):
     return False
 
 def get_service_status_code(service_name):
-    code = os.system("systemctl status {} --no-pager > /dev/null 2>&1".format(service_name))
-    return code
+    return run_systemctl_status_command("status", service_name)
 
 def get_service_status_basic_text(service_name):
     if not is_service_enabled(service_name):
         return "Disabled"
 
-    code = os.system("systemctl status {} --no-pager  > /dev/null 2>&1".format(service_name))
+    code = run_systemctl_status_command("status", service_name)
     if code == 0:
         return "Running"
     return "Error"
@@ -41,14 +50,18 @@ def get_service_status_color(service_name):
     if not is_service_enabled(service_name):
         return "gray"
 
-    code = os.system("systemctl status {} --no-pager > /dev/null 2>&1".format(service_name))
+    code = run_systemctl_status_command("status", service_name)
     if code == 0:
         return "green"
     return "red"
 
 def get_journalctl_log(service_name):
     try:
-        log = to_string(subprocess.check_output("journalctl -r --unit={} --no-pager | head -n 300".format(service_name), shell=True).decode("utf8"))
+        log = to_string(
+            subprocess.check_output(
+                ["journalctl", "-r", "-n", "300", f"--unit={service_name}", "--no-pager"]
+            ).decode("utf8")
+        )
     except:
         log = "ERROR"
     return log