Munin contributed plugins

#!/bin/sh

do_config()  {

graph=(          2            # number of graphs.

   label  draw  colour        # graph setup

   logins AREA  40ff40        #   1st graph setup data

   users  LINE2 ff0080        #   2nd graph setup data

)

cat << EOF

graph_title Users Online

graph_vlabel Number of users and logins

graph_category logins

graph_args --base 1000 -l 0

graph_scale no

EOF

# can go into an include file

labels=$((${#graph[*]}/(graph+1)))

for ((i=0; i<graph; i++)); do    

   for ((j=0; j<labels; j++)); do 

      conf=$((i*labels+labels+1))

      echo "${graph[conf]}.${graph[j+1]} ${graph[conf+j]}"    

   done

done

}

do_fetch()  {

   echo "logins.value $(who | wc -l)"

   echo "users.value $(who | sed 's/ .*//' | sort -u | wc -l)"

}

do_${1:-fetch}

exit 0