Clueless re Java: /opt vs. /usr/local

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12-09-2013

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Clueless re Java: /opt vs. /usr/local

It seems this is a oft debated item, that's over my head.

So here's what I've got:
Java 7 set up at /opt/ but I really want it at /usr/local...

What have I done?

Have: Debian 7 (whezzy) with gnome, so what do I do to set things back where it should be?

I guess this is a hot topic according to these two who made some good points....I'm having issue getting Hadoop happy bc I followed the /opt path for Java and I think /usr/local is what it's looking for...

http://m.linuxjournal.com/magazine/p...pt-vs-usrlocal

---------- Post updated at 02:59 PM ---------- Previous update was at 12:04 PM ----------

Think I got it, just needed to set the PATH

Can now run jps

sas

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jlex

JLEX(1) 						      General Commands Manual							   JLEX(1)

NAME

       jlex - lexical analyser generator for Java(tm)

SYNOPSIS

       jlex specfile

DESCRIPTION

       JLex takes the language specification in specfile and generates Java(tm) source code for a lexical analyser corresponding to the specifica-
       tion.

       The lexical analyzer source code is placed in a file whose name is the name of the JLex specification file, with the string  ".java"  added
       to  the	end.  For example, if the JLex specification file is called foo.lex, the lexical analyzer source code file that JLex produces will
       be called foo.lex.java.)

       The resulting lexical analyzer source code should be compiled with a Java compiler.  This produces a lexical analyzer class file, which can
       then  be  used in your application.  If the default settings have not been changed, the lexical analyzer class will be called Yylex and the
       class files will named Yylex.class and Yytoken.class.

       For more information, see the JLex manual in /usr/share/doc/jlex/manual.html.

SEE ALSO

       /usr/share/doc/jlex/manual.html, /usr/share/doc/jlex/bugs.html, /usr/share/doc/jlex/README.

DIAGNOSTICS

       jlex produces diagnostic output to inform you of its progress.

BUGS

       See /usr/share/doc/jlex/bugs.html for information about known bugs in JLex.

       Please report bugs in the Debian version of JLex to the Debian bug tracking system in the first instance.   Otherwise,  please  contact	A.
       Appel <appel@princeton.edu>.

AUTHOR

       JLex was written by Elliot Joel Berk at Princeton University.  It is now maintained by C. Scott Ananian.

       This manual page was written by Charles Briscoe-Smith <cpbs@debian.org>, modified by Colin Watson <cjwatson@debian.org>, and is hereby con-
       tributed to the Public Domain.

       Please see the file /usr/share/doc/jlex/copyright for more information.

TRADEMARK ACKNOWLEDGEMENTS

       "Java" is a trademark or registered trademark of Sun Microsystems, Inc.

								    6 Aug 2001								   JLEX(1)

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