diff --git a/check_snmp_printer b/check_snmp_printer
index 94e4364a9493e327edbd0672b8333ccaa8fca7d6..811b54442bfa0b52b53910db4abf4d48236f53c2 100755
--- a/check_snmp_printer
+++ b/check_snmp_printer
@@ -3,21 +3,52 @@
 #
 # Wrapper for check_snmp_printer plugin
 #
+# The reason behind this wrapper is detecting the snmp auth
+# parameters by check_dnmp_includes which needs a snmp target
+# to find its custom config.
+# 
+# All given params will be sent to
+# /usr/lib64/nagios/plugins/check_snmp_printer_v2.0.1
+# except "-c <script>"
+#
+# TODO: IML like help
+#
+# USAGE
+#   check_snmp_printer -H <host|ip>             --<what>
+#   check_snmp_printer -H <host|ip> -c <script> --<what>
+#
+#     <host>|<ip>   target to connect
+#     <what>        what information will be shown
+#                   --consum
+#                   --messages
+#                   --pagecount
+#                   --trays
+#     <script>      script to execute with full path
+#
 # ------------------------------------------------------------
 # 2021-03-22  <axel.hahn@iml.unibe.ch>  v0.1
 # 2023-09-18  <axel.hahn@iml.unibe.ch>  v0.2  snmpv3 support
+# 2023-10-12  <axel.hahn@iml.unibe.ch>  v0.3  parameter for custom script; detect debian
 # ============================================================
 
 # ------------------------------------------------------------
 # CONFIG
 # ------------------------------------------------------------
 
-. $(dirname $0)/check_snmp_includes
+. $( dirname $0 )/inc_pluginfunctions
+. $( dirname $0 )/check_snmp_includes
+
+debug=0
 
 # check='/usr/lib64/nagios/plugins/check_snmp_printer'
 # updated script is taken from https://github.com/Tylan/check_snmp_printer/tree/master
-check='/usr/lib64/nagios/plugins/check_snmp_printer_v2.0.1'
-debug=0
+nagiosDir='/usr/lib64/nagios/plugins'
+myscript="check_snmp_printer_v2.0.1"
+case "$( ph.getOS)" in
+        debian)
+                nagiosDir='/usr/lib/nagios/plugins'
+                ;;
+esac
 
 # ------------------------------------------------------------
 # MAIN
@@ -25,10 +56,14 @@ debug=0
 
 sParams="$*"
 
-
 # find host behind param -H
 SNMPTARGET=$( echo $sParams | sed -Ee 's#.*\-H\ ([0-9a-z\.\-]*).*#\1#' )
 
+# detect -c <script>
+check=$(      echo $sParams | sed -Ee 's#.*\-c\ ([0-9a-z\.\-_/]*).*#\1#' )
+test "$check" = "$sParams" && check="${nagiosDir}/${myscript}"
+test "$check" = "$sParams" || sParams=$( echo $sParams | sed -Ee 's#\-c\ ([0-9a-z\.\-_/]*)##' )
+
 # find SNMPTARGET in config
 test -z "$SNMPAUTH" && read_config
 sParams+=" $SNMPAUTH"
@@ -52,4 +87,6 @@ case "$what" in
 esac
 
 test "$debug" = "1" && ( echo "$what:"; echo calling $check $sParams ; echo ) 
-$check $sParams
+$check $sParams -t $SNMPTIMEOUT
+
+# ------------------------------------------------------------