Find processes with more than X instances

find_process_count.awk

# usage: ps -e | awf -f find_process_count.awk
# output
{
     limit = 5
     # turn the process names into lowercase
     $4 = tolower($4)    # remove case distinctions
     # count occurances of $4
     freq[$4]++
 }

 END {
     for (word in freq)
        # print if above limit
        if (freq[word] > limit )  printf "%s\t\t\t\t%d\n", word, freq[word]
 }