Installing the LDSS3 IRAF Tools.
This article assumes you have the iraf27 environment installed in /usr/local/anaconda/envs/iraf27.
/usr/local/anaconda/envs/iraf27
/usr/local/anaconda/envs/iraf27/iraf_extern/
sudo vim /usr/local/anaconda/envs/iraf27/extern.pkg
# ftp://iraf.noao.edu/iraf/v216/REPO reset ldss3 = /usr/local/anaconda/envs/iraf27/iraf_extern/ldss3_tools_dist/ task ldss3.pkg = ldss3$ldss3.cl reset helpdb= ( envget("helpdb") + ",ldss3$lib/helpdb.mip" ) reset aproposdb= ( envget("ldss3") + ",ldss3$lib/apropos.db" )