[ncl-talk] [Non-DoD Source] Re: ncl_filedump error

Wed Oct 10 12:29:31 MDT 2018

Installing tcsh solved the problem.  Mostly I use ncl on a Red Hat system, so I guess tcsh must be installed by default there.  If I “sudo apt-get install csh” I get a BSD variant of csh, which caused the core dump. 

I forgot to check before trying to install tcsh, but apt-get reported it as a NEW package (6.2.00-7) and updated the alternatives to use /bin/tcsh for /bin/csh. And I did a “which csh” which reported no csh.  I had already removed the bsd-csh (or csh-bsd) that core dumped.

This particular machine has been upgraded several times on Ubuntu’s 6 monthly release cycle, so they must have dropped tcsh since the last long-term release (16.04?) at least.  I don’t think I’ve used the conda version before on this machine., only the   Maybe the conda recipe needs to check for the presence of csh/tcsh?

Kevin

From: Rick Brownrigg <brownrig at ucar.edu> 
Sent: Wednesday, October 10, 2018 12:28 PM
To: HAVENER, KEVIN F GS-12 USAF ACC 14 WS/WXED <kevin.havener at us.af.mil>
Cc: Ncl-talk <ncl-talk at ucar.edu>
Subject: [Non-DoD Source] Re: [ncl-talk] ncl_filedump error

Yes to answer you primary question, ncl_filedump is inherently a C-shell script, and thus incompatible with bash. This is interesting however in that this is the second report that I'm aware of where  ncl_filedump has core dumped on an Ubuntu system.  I unfortunately was unable to duplicate the problem on an Ubuntu VM I installed for the purpose of investigating. I too had had to install csh, which I did by "apt-get install tcsh"   FWIW -- on most modern Linux distros, "csh" is actually a symlink to the Tahoe shell "tcsh". Do you know if this was the case for you?  

Rick

On Wed, Oct 10, 2018 at 8:21 AM HAVENER, KEVIN F GS-12 USAF ACC 14 WS/WXED <kevin.havener at us.af.mil <mailto:kevin.havener at us.af.mil> > wrote:

Trying to ncl_filedump a file to see what’s in it.  I get “/bin/csh: bad interpreter: No such file or directory”

Of course not, it’s Ubuntu 18.04 (bash) and a conda installed ncl 6.5.0.  Installing csh (csh-bsd) results in a core dump.  Is ncl_filedump truly dependent on /bin/csh?

Ncdump will dump the file just fine.  What am I missing?

Kevin Havener

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