how to sum file size from ls like output log with Bytes, KiB, MiB, GiB - https://stackoverflow.com/questions/63858674/how-to-sum-file-size-from-ls-like-output-log-with-bytes-kib-mib-gib

count_files.sh

#!/bin/bash

count() {

awk 'BEGIN {
        unit["Bytes"] = 1;

        unit["kB"] = 10**3;
        unit["MB"] = 10**6;
        unit["GB"] = 10**9;
        unit["TB"] = 10**12;
        unit["PB"] = 10**15;
        unit["EB"] = 10**18;
        unit["ZB"] = 10**21;
        unit["YB"] = 10**24;

        unit["KB"] = 1024;
        unit["KiB"] = 1024**1;
        unit["MiB"] = 1024**2;
        unit["GiB"] = 1024**3;
        unit["TiB"] = 1024**4;
        unit["PiB"] = 1024**5;
        unit["EiB"] = 1024**6;
        unit["ZiB"] = 1024**7;
        unit["YiB"] = 1024**8;
    }

    {
        if($4 in unit) total += $3 * unit[$4];
        else printf("ERROR: Cant decode unit at line %d: %s\n",NR, $0);
    }
    
    END {
        binaryunits[0] = "Bytes";
        binaryunits[1] = "KiB";
        binaryunits[2] = "MiB";
        binaryunits[3] = "GiB";
        binaryunits[4] = "TiB";
        binaryunits[5] = "PiB";
        binaryunits[6] = "EiB";
        binaryunits[7] = "ZiB";
        binaryunits[8] = "YiB";
        for(i=8; i>=0; --i) {
            if(total >= (1024**i)) {
                printf("%f %s %f\n", total/(1024**i), binaryunits[i], total);
                break;
            }
        }
    }'
}

count $1