How do I write to a text file using AppleScript? - io

Question

So, that's it. How can I write to a text file using AppleScript?
I've tried googling around, but answers seem to be years old and I'm not really sure what should be the preferred idiom this days.

Answer 1

on write_to_file(this_data, target_file, append_data) -- (string, file path as string, boolean)
try
set the target_file to the target_file as text
set the open_target_file to ¬
open for access file target_file with write permission
if append_data is false then ¬
set eof of the open_target_file to 0
write this_data to the open_target_file starting at eof
close access the open_target_file
return true
on error
try
close access file target_file
end try
return false
end try
end write_to_file
Interfacing with it can be cleaned up with the following...
my WriteLog("Once upon a time in Silicon Valley...")
on WriteLog(the_text)
set this_story to the_text
set this_file to (((path to desktop folder) as text) & "MY STORY")
my write_to_file(this_story, this_file, true)
end WriteLog

Answer 2

A short version in pure AppleScript:
set myFile to open for access (choose file name) with write permission
write "hello world" to myFile
close access myFile
It seems there is no native one command solution. Instead you have to open and later close the file.

Answer 3

#JuanANavarro.
When using the shell you should use quoted form of for the TEXT and the file path.
This will help stop errors with spaces in file names and characters like apostrophes in the text for example.
set someText to "I've also learned that a quick hack, if one only wants to spit a bit of text to a file, is to use the shell."
set textFile to "/Users/USERNAME/Desktop/foo.txt"
do shell script "echo " & quoted form of someText & " > " & quoted form of textFile
The above script works fine.
If I did not have & quoted form of someText
but instead I had & someText I would get the following error.
error "sh: -c: line 0: unexpected EOF while looking for matching `''
sh: -c: line 1: syntax error: unexpected end of file" number 2
The apostrophes in "I've" is seen as part of the command.
If I had
set textFile to "/Users/USERNAME/Desktop/some foo.txt" as my file path ( note the space.) And did not have & quoted form of textFile but instead I had & textFile
Then when the file was written out it would write to a file named "some" and not "some foo.txt"

Answer 4

I've also learned that a quick hack, if one only wants to spit a bit of text to a file, is to use the shell.
do shell script "echo TEXT > some_file.txt"

Answer 5

For me running do shell script was too slow on a PowerBook G4 when executed in a loop 300000 times ;), but of course that's quicker to write which sometimes makes sense. You would also want to escape shell characters like this:
do shell script "echo " & quoted form of foobar & " >> some_file.txt"
and for aesthetic reasons I would use
tell me to do shell script "#..."
but I haven't verified yet (what I believe) that if "do shell script" is in a block of "tell Finder" for example it is Finder process that creates a subshell. With "tell me to do shell script" at least Script Editor log looks better for me. ;)