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From "matthew.hawthorne" <ma...@apache.org>
Subject [io] Re: ProcessUtils and support classes offer
Date Fri, 27 Aug 2004 18:39:25 GMT
Cris Perdue wrote:
> The purpose of the main ProcessUtils class is to make it simpler to call 
> external programs and receive the results back.  It was inspired 
> especially by the TCL exec function and also resembles the Perl backtick 
> operator.  A simple call to "df" using the simplest form of call could 
> look something like:
> 
> String filestats = ProcessUtils.exec(new String[] {"df"});
> 
> The package handles program output to "standard error" and nonzero exit 
> codes.


This may be a good fit for commons-io 
(http://jakarta.apache.org/commons/io/).   A class like ProcessUtils 
seems interesting, but it would definitely need some extensive testing 
on different platforms to make sure it's OK.

Consider submitting your stuff as a Bugzilla enhancement, so that  the 
commons-io developers can take a look when they
get a chance.

I believe the javadocs state that ProcessUtils throws an exception if 
anything is written to stderr.  I would like it if this were 
customizable, since a lot of programs write warnings and such to stderr, 
but still keep on running.  Perhaps it could become
some type of callback mechanism.

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