* fix for --check-host routine

* better discovery for systemctl in include_os
* other smaller fixes

sources/lib/core/display_init.sh

@@ -31,7 +31,7 @@
 function display_init
 {
 # ------------------------- CONFIGURATION starts here -------------------------
-typeset _VERSION="2019-03-16"                               # YYYY-MM-DD
+typeset _VERSION="2019-03-22"                               # YYYY-MM-DD
 typeset _SUPPORTED_PLATFORMS="AIX,HP-UX,Linux"              # uname -s match
 # ------------------------- CONFIGURATION ends here ---------------------------
 
@@ -76,6 +76,9 @@ fi
 if [[ -n "${_DISPLAY_MSG_CODE}" ]]
 then
     case "${_DISPLAY_MSG_CODE}" in
+        OK|ok)
+            _DISPLAY_COLOR="${_GREEN}"
+            ;;
         ERROR|error)
             _DISPLAY_COLOR="${_MAGENTA}"
             ;;

sources/lib/core/include_os.sh

@@ -111,13 +111,14 @@ check_platform 'Linux' || {
 
 # default is sysv
 LINUX_INIT="sysv"
-if [[ -r /usr/lib/systemd && -x /usr/bin/systemctl ]]
+if [[ -r /usr/lib/systemd && -n "$(command -v systemctl 2>/dev/null)" ]]
 then
     LINUX_INIT="systemd"
 elif [[ -r /usr/share/upstart ]]
 then
     # shellcheck disable=SC2034
     LINUX_INIT="upstart"
+
 fi
 
 return 0
@@ -218,7 +219,7 @@ _NMCLI_BIN="$(command -v nmcli 2>/dev/null)"
 if [[ -x ${_NMCLI_BIN} && -n "${_NMCLI_BIN}" ]]
 then
     # check for active
-    _HAS_NM=$(nmcli networking 2>/dev/null | grep -c -i "enabled")
+    _HAS_NM=$(nmcli networking 2>/dev/null | grep -c -i "enabled" 2>/dev/null)
 else
     (( ARG_DEBUG > 0 )) && debug "NetworkManager is not active here"
     return 1