$bytes
From Scriptwiki
Returns comma formatted filesize.
$bytes(N,bkmgt3)[.suf]
The bkmgt options return the result as bytes, kilobytes, megabytes, gigabytes or terabytes.
Using option 3 would return the best human readable style with remainders.
The suf property appends B,KB,MB,GB or TG depending on what formatting is being used.
Examples
echo -ag $bytes(1024,k) ;Returns 1 because there is 1 kilobyte in 1024 bytes echo -ag $bytes(123456,m) ;Returns 0.12 because there is 0.12 megabytes in 123456 bytes echo -ag $bytes(1536,3).suf ;Returns 1.5KB
echo -ag $bytes($file($sfile($mircdir)).size).suf
Returns the size of the file you selected in the best human readable form with its suffix appended.
echo -ag $replace($bytes(1000000),$chr(44),.)
Returns the number specified by $bytes parameter in following form: "1.000.000".