/bin/date +%Y%m%d%H%M%S -d "$(/usr/bin/stat -c %x find.txt)"

/usr/bin/ksh: stat:  not found

ls -log -u find.txt

perl -e '@stat = stat($ARGV[0]); @time = localtime($stat[9]); printf "%04d%02d%02d%02d%02d%02dn", $time[5]+1900, @time[4,3,2,1,0]'

/usr/bin/ksh:

stat: not found