calculate file sizes

Scripting Forums AppleScript | Mac OS X
#1

Hi everybody!

today i need a shell script to calculate file sizes. The “Finder” is too slow, especially for big data sizes, like GB.
i construct a routine, but seems not efficient enough, for the reason some files arn’t well calculated. (echo: comment of files)

set data_sz to get size of the_t_ff
				repeat until data_sz ≠ missing value
					delay 1
					set data_sz to round ((size of the_t_ff) / 1024 / 1024)
					if data_sz is 0 then
						set data_sz to 0
					end if
					--display dialog (data_sz as text)
					my procedere(data_sz, the_t_ff, this_f)
				end repeat
#2

du is the command you want:

set tSize to first word of (do shell script "du -d 0 " & quoted form of POSIX path of (choose file)) as integer
#3

Thanks for your support, Adam,
time is short, help is valuable.

#4

For the du command, I believe you need to use the -k option, not the -d option to get the file size in 1024 byte blocks:

--Choosing a file that Finder displays as 1.3 MB in size (1,363,732 bytes)

set tSize to first word of (do shell script "du -d 0 " & quoted form of POSIX path of (choose file)) as integer

--> 2664

set tSize to first word of (do shell script "du -k " & quoted form of POSIX path of (choose file)) as integer

--> 1332
#5

Hi, Craig!

-d stands for deep, and the 0 for the subfolders; -m stands for Megabyte. I look forward to read a bit the man-pages.

	set tSize to first word of (do shell script "du -m -d 0 " & quoted form of POSIX path of (E_path as alias)) as integer

Hmm…shell scripts…very efficient and small, but i’ve no time to learn other computer languages, sob. Its good to stay within the community of Macscripter.

#6

How about the -h option (return result in human readable form; xxK for xx kilobytes, xxM for xx megabytes, etc.

set tSize to first word of (do shell script "du -h " & quoted form of POSIX path of (choose file))