Matthew Miller wrote: > On Tue, May 15, 2018 at 11:43:59AM -0400, Tom Horsley wrote: >> Not me, anaconda did it :-). I've now erased it and >> things are back to normal. Thanks. (I read the description >> of this in rpm -i, and I still have no idea what it is >> good for). > > It is very commonly used in high performance computing and other > academic/research environments in combination with software installed > in a shared NFS tree (or AFS, although probably not so much anymore). > > I'm not sure what exactly pulled it in for you -- possibly a new soft > dependency of some package you have installed.
On my system it's been installed for many releases. The difference between f27 and f28 is that environment-modules was updated from 3.2 to 4.1. The newer release includes this very noisy output. There is a way to disable most of it, by setting MODULES_SILENT_SHELL_DEBUG=1. https://github.com/cea-hpc/modules/issues/121 was filed regarding the xtrace output (initially at SourceForge before the project moved, it appears). It's easier to remove it though, for anyone that doesn't need it. That's what I'll be doing. It is a rather ugly effect. Arguably, the default should be silent. I can't imagine how many users would want it enabled just because they ran a script with -x for testing. It looks like scl-utils requires it. If environment-modules is updated to 4.1 in the next RHEL, that will be a fun surprise for many of those users -- who are far more likely to have scl-utils installed, I imagine. -- Todd ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Whenever I feel blue, I start breathing again.
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