Linux - Cache information bash script

This is a little bash script to get the CPU cache ratios on Ubuntu.

Cache Level: (1, 2 or 3)
Cache Type: (data-, instruction or general cache)
Capacity: of the respective cache
Associativity: (set size)
Block capacity: / capacity of a cache line
Number of sets: ((total capacity / block capacity) / associativity)

Concerning the associativity, see https://en.wikipedia.org/wiki/CPU_cache#Associativity.

for DIR0 in /sys/devices/system/cpu/cpu0/cache/*/; do
    if [ -f "$DIR0/level" ]; then
        LEVEL0=$(cat "$DIR0/level")
        TYPE0=$(cat "$DIR0/type")
        SIZE0=$(cat "$DIR0/size")
        ASSOC0=$(cat "$DIR0/ways_of_associativity")
        BLOCK0=$(cat "$DIR0/coherency_line_size")
        SETS0=$(cat "$DIR0/number_of_sets")
        printf "Cache level: %s\nCache type: %s\nCapacity: %s Bytes\nAssociativity: %s\nSets: %s\nBlock size: %s Bytes\n\n" "$LEVEL0" "$TYPE0" "$SIZE0" "$ASSOC0" "$SETS0" "$BLOCK0"
    fi
done

Usage:

1. Save code to file, e.g. ~/cacheinfo.sh
2. Make it executable: chmod +x cacheinfo.sh
3. Execute: sudo sh cacheinfo.sh