Sep 14, 2012

How to setup alternative on redhat(fedora)/Opensuse?

To view the help and we get more info.
alternatives version 1.3.59 - Copyright (C) 2001 Red Hat, Inc.
This may be freely redistributed under the terms of the GNU Public License.

usage: alternatives --install <link> <name> <path> <priority>
                    [--initscript <service>]
                    [--slave <link> <name> <path>]*
       alternatives --remove <name> <path>
       alternatives --auto <name>
       alternatives --config <name>
       alternatives --display <name>
       alternatives --set <name> <path>

common options: --verbose --test --help --usage --version
                --altdir <directory> --admindir <directory>

Here's the exmaple
root@syntax3rror ~]# /sbin/alternatives --install /usr/bin/java java /opt/jdk1.6.0_23/bin/java 1
[root@syntax3rror ~]# /sbin/alternatives --config java

There are 4 programs which provide 'java'.

  Selection    Command
-----------------------------------------------
*+ 1           /usr/lib/jvm/jre-1.7.0-openjdk/bin/java
   2           /opt/jdk1.6.0_23/bin/java

Enter to keep the current selection[+], or type selection number: 2

INFO: In openSuse the command was update-alternatives

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