Re: File exists on a posix path
Re: File exists on a posix path
- Subject: Re: File exists on a posix path
- From: Adam Bell <email@hidden>
- Date: Mon, 13 Feb 2006 11:08:03 -0400
In 10.4.4 at least, I had to modify the first shell script as follows to deal with folder names or file names with spaces in them:
return (((do shell script ("if test -e " & "'" & thefile & "'" & " ; then echo 1 ; else echo 0 ; fi" as string)) as integer) as boolean)
Note: I just moved the single quotes which wouldn't compile inside the first quoted string. Using 'quoted form of' might be better.
On 2/13/06, Bastiaan Boertien
<email@hidden> wrote:
maybe this ?
on checkIfFileExists(
thefile)
if
character 1 of thefile
= "/" then
return (((do shell script ("if test -e '" & thefile
& "' ; then echo 1 ; else echo 0 ; fi" as string
)) as integer) as
boolean)
else
return (((
do shell script ("if test -e '" & POSIX path of
thefile & "' ; then echo 1 ; else echo 0 ; fi" as
string)) as integer
) as boolean)
end if
end
checkIfFileExists
The input needs to be a full path of the file. It can be an macintish path or an posix path
Op 10-feb-2006, om 23:37 heeft Christopher Nebel het volgende geschreven:
On Feb 10, 2006, at 11:45 AM, Gnarlodious wrote:
I think what you mean is this:
do shell script "ls ~/testfile"
Unfortunately if testfile does not exists then Applescript errors. I believe
this situation started in 10.4, because before then it returned a nul
string. But regardless, you now need to wrap it in a try statement:
try
do shell script "ls ~/testfile"
on error
return ""
end try
or some such gyration. I wish Apple would fix it, but it won't happen since
I didn't complain about it.
Not to mention the fact that ls's exit status is defined by POSIX. Take it up with them if you like, but I don't expect you'll get very far.
Incidentally, it would be better to ask the question you actually wanted to ask, rather than relying on a side effect. In this case, assuming you're committed to using the shell, that would be to use test(1).
--Chris Nebel
AppleScript and Automator Engineering
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