remove emoji icons; handle "null" in license info

check_docker_info

@@ -14,6 +14,7 @@
 # 2024-01-18  v1.0  <axel.hahn@unibe.ch>      init
 # 2024-01-22  v1.1  <axel.hahn@unibe.ch>      detect DOCKER; use sudo; add debug
 # 2024-01-23  v1.2  <axel.hahn@unibe.ch>      Show a list of docker containers; add path
+# 2024-01-24  v1.3  <axel.hahn@unibe.ch>      remove emoji icons; handle "null" in license info
 # ======================================================================
 
 
@@ -117,6 +118,8 @@ iImages=$(  _getString "$data" ".Images" )
 sVersion=$( _getString "$data" ".ServerVersion")
 sLicense=$( _getString "$data" ".ProductLicense" )
 
+test "$sLicense" = "null" && sLicense="no license info"
+
 # --- generate result
 
 if [ "$iCTotal" -eq "0" ]; then
@@ -159,13 +162,14 @@ if [ $bOptContainers -eq 1 ] && [ "$iCTotal" -gt "0" ]; then
       sName=$(   _getString "$line" ".Names" )
       sState=$(  _getString "$line" ".State" )
       sStatus=$( _getString "$line" ".Status" )
-
-      sIco="🔶"
-      grep "exited"  <<< "${sState}" >/dev/null && sIco="❌"
-      grep "running" <<< "${sState}" >/dev/null && sIco="✅"
+      sIco=
+      # Icinga ui does not show these characters
+      # sIco="🔶"
+      # grep "exited"  <<< "${sState}" >/dev/null && sIco="❌"
+      # grep "running" <<< "${sState}" >/dev/null && sIco="✅"
 
       printf "  %-14s %-40s %-20s\n" "$sIco $sState" "$sName" "$sStatus" 
-      # echo "$line" | jq
+
     done 
     echo