Using Multiple Software Collections

Posted by Alexander Todorov on Mon 18 January 2016

Software Collections are never versions of system wide packages used typically on Red Hat Enterprise Linux. They are installed together with the system-wide versions and can be used to develop applications without affecting the system tools.

If you need to use a software collection then enable it like so:

scl enable rh-ruby22 /bin/bash

You can enable a second (and third, etc) software collection by executing scl again:

scl enable nodejs010 /bin/bash

After executing the above two commands I have:

$ which ruby
/opt/rh/rh-ruby22/root/usr/bin/ruby
$ which node
/opt/rh/nodejs010/root/usr/bin/node

Now I can develop an application using Ruby 2.2 and Node.js 0.10.

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