0launch - Online in the Cloud

PROGRAM:

NAME

0launch — download and run programs by URL

SYNOPSIS

0launch [OPTION]... PROGRAM [ARG]...

DESCRIPTION

0launch runs the given program. PROGRAM is either a URL in the form
`http://site/program.xml' or a local path name like `/path/to/program.xml'.

If the program is not already on your computer, 0launch downloads information about which
versions are available, and lets you choose one to download. It will also (automatically)
do the same for any libraries the program needs.

Note that much of the functionality that was originally in 0launch has now moved to
0install(1).

0launch PROGRAM ARGS

is roughly equivalent to

0install run PROGRAM ARGS

See the 0install(1) man-page for more information.

EXAMPLES

When a program is available using 0launch, it will have an associated URL. To run the
program, simply invoke 0launch with this as an argument:

0launch http://rox.sourceforge.net/2005/interfaces/Edit

The first time you do this, details about the program are downloaded and cached, and you
will be prompted to confirm the versions to use. In future, the program will run directly
from the cache without confirmation.

To check for new versions:

0launch --refresh http://rox.sourceforge.net/2005/interfaces/Edit

To avoid having to keep typing the full URI, use the `0install add' command to create
shortcuts to run your programs.

COMMAND-LINE OPTIONS

0launch takes the same options as "0install run".

DEBUGGING TIPS

To debug 0launch itself, use the --verbose and --console options. For example:

$ 0launch -vvc http://myprog

To trace or debug programs run by 0launch, use the --wrapper option. For example, to run
myprog --help, displaying all calls to open(2):

$ 0launch --wrapper="strace -e open" http://myprog --help

If your program is interpreted (e.g. a Python program), and you wish to debug the
interpreter running it, you can do it like this:

$ 0launch --wrapper="gdb --args python" http://myprog --help

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