I've run in several problemens using /usr/bin/open from my java
application.
I have 2 general cases:
1: if external application is not defined:
Runtime.getRuntime().exec(new String[] { "/usr/bin/open", "my file
name here" });
=> works
2: if external application is defined:
Runtime.getRuntime().exec(new String[] { "/usr/bin/open", "-a"
"'path_to_external_applicaiton_which_is_100%_executable_and_works",
"'my_file_here'" });
=> sometimes ok, but mostly "uhm, wtf?"..
In case 2 I have these problems:
1: external applicatin is not in the $PATH and contains a backslash
{es}
2: external application is in the "/Applications/" and have spaces
in the name
Please provide the actual path to the actual application, and the
actual path to your actual file, exactly as you have it in your Java
code that fails. In short, post actual code, not hypothetical code.
Also, is your designated application a bundled application, or is it
just a plain executable? E.g. a bundled app like TextEdit.app, or a
plain executable like /bin/ls. If not sure, run the 'file' command
on the path to application, and post the results.
/usr/bin/open's -a option only works with bundled apps, not with
plain executables. If you have a plain executable, just exec() it
directly:
exec( new String[] { "pathToExecutable", "path to arg 1" } )
Also, in #2, you have single-quotes around the name my_file_here,
inside the double-quotes that represent a Java String literal.
Unless your filename contains single-quotes, this is wrong: /usr/bin/
open is not a shell, and a shell is usually what interprets quoting
of command-line args.
When using the same call from terminal, I have this error message:
$ /usr/bin/open -a '/User/me/tmp/blah\_blah.sh' 'file:/var/tmp/
image.jpg'
LSOpenFromURLSpec() failed with error -1081 for the file file:/var/
tmp/image.jpg.
In this command-line, you are single-quoting the path to the app, but
you are also using a backslash inside the quotes. This will cause
the \ to be taken literally.
It seems like you don't completely understand quoting and \-escaping
rules of the shell, or are adding quotes at inappropriate places for
unspecified reasons.
For example, try these command-lines in Terminal.app:
echo '/User/me/tmp/blah\_blah.sh'
echo "/User/me/tmp/blah\_blah.sh"
echo /User/me/tmp/blah\_blah.sh
As an exercise in understanding args and quoting, write a simple Java
program that prints its args to main(String[]), one per line, with
the array index preceding each arg. Then run that program with the
different quoted and escaped args above.
Also, you are passing a URL, not a filesystem pathname. That's
probably not why this particular use of open is failing, but it's
something to remember when you run applications. If the application
doesn't accept URLs, then passing a URL is wrong.
-- GG
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