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–安全なファイルの書き出し
on write_to_file_Safely(this_data, target_file)
set finalPath to target_file

–テンポラリフォルダに一度書き出して、ターゲットのパスに移動
set tmpFol to path to temporary items from system domain
set tmpName to do shell script “date +%Y%m%d%H%M%S“
set tmpPath to (tmpFol as string) & tmpName

–テンポラリのパスにファイル書き出し
try
set the target_file to the tmpPath as text
set the open_target_file to open for access file target_file with write permission
set eof of the open_target_file to 0 –つねにoverwrite mode
write this_data to the open_target_file starting at eof
close access the open_target_file

on error error_message
try
close access file target_file
end try
return error_message
end try

–ファイルの移動を行う
set tFilePOSIX to quoted form of POSIX path of target_file
set fPathPOSIX to quoted form of POSIX path of finalPath
set sText to “mv “ & tFilePOSIX & “ “ & fPathPOSIX
try
do shell script sText
on error error_message
return error_message
end try

return true

end write_to_file_Safely