Size  Count Who             
Total Size = 6.16 Gb
  63.02 Mb     56 Automatisering  
   3.64 Mb      1 Karaoke         
  45.79 Mb      2 Muziekfeesten   
   4.95 Gb    175 Opgelicht       
  72.67 Mb     12 Radar           
 493.33 Mb     24 RegelRecht      
   6.16 Gb    308 Total           
 410.69 Mb     10 Vermist         
 146.40 Mb     28 Zappsport

{
        for (I=9 ; I<=NF ; I++) { x++ } { size=size+$5 }
}
END { hum[1024**4]="Tb"; hum[1024**3]="Gb"; hum[1024**2]="Mb"; hum[1024]="Kb";
        for (x=1024**4; x>=1024; x/=1024) { if (size>=x) { { printf "Total Size = ",NR }
        printf "%.2f %s\n\n",size/x,hum[x];break }
        }
# Output
        { FS = ":";
        format = "%11s %6s %-16s\n";
        prinft "\n"
        printf ( format, "Size","Count","Who" ) }
        for (i in u_count) {
                if (i != "") {
                { hum[1024**4]="Tb"; hum[1024**3]="Gb"; hum[1024**2]="Mb"; hum[1024]="Kb";
        for (x=1024**4; x>=1024; x/=1024) { if (u_size[i]>=x) {
        usersize = sprintf ( "%.2f %s", u_size[i]/x,hum[x] )
        printf ( format,usersize, u_count[i], i);break } } } | sort -k4
                          }
                }           
        for (i in all_count) {
                if (i != "") {
                { hum[1024**4]="Tb"; hum[1024**3]="Gb"; hum[1024**2]="Mb"; hum[1024]="Kb";
        for (x=1024**4; x>=1024; x/=1024) { if (all_size[i]>=x) {
        allsize = sprintf ( "%.2f %s", all_size[i]/x,hum[x] )
        printf ( format,allsize, all_count[i], "Total");break } } }
                        }
        }
}'