Applescript file loop

Your problem is that you're trying to work on all files en masse, and that won't work.

For example, when you:

set yy to characters 1 through 2 of theName as text as integer

which file name do you expect this to work on?

What you need to do is add a repeat loop to iterate through the files in turn. Fortunately it's trivial to do:

on opentheFiles

repeat with eachFile in theFiles

set theName to name of (info for eachFile)

set yy to characters 1 through 2 of theName as text as integer

if yy < 10 then set yy to "0" & yy

set mm to characters 3 through 4 of theName as text as integer

if mm < 10 then set mm to "0" & mm

set dd to characters 5 through 6 of theName as text as integer

if dd < 10 then set dd to "0" & dd

set hh to characters 8 through 9 of theName as text as integer

if hh < 10 then set hh to "0" & hh

set mn to characters 11 through 12 of theName as text as integer

if mn < 10 then set mn to "0" & mn

do shell script "touch -t " & yy & mm & dd & hh & mn & " " & quoted form of POSIX path of eachFile

end repeat

end open

So you can see, wrapping the commands in a 'repeat/end repeat' block runs the enclosed code once per item in the list. Additionally, when you say:

repeat with eachFile in theFiles

AppleScript uses eachFile as a reference to each item in the list each time - so the first time through the loop, eachFile points to the first item, the second time through it points to the second item, and so on, making it easy to iterate through a list of items.