IRAF install steps

iraf.txt

http://www.astronomy.ohio-state.edu/~khan/iraf/iraf_step_by_step_installation_64bit

# Fix fitparams issue

cd /iraf/iraf/noao/bin.linux64/
sudo rm x_photcal.e
sudo wget ftp://iraf.noao.edu/iraf/v216/support/linux/x_photcal.e
sudo chmod +x x_photcal.e 

cd /iraf/iraf/bin.linux64/
sudo rm cl.e ecl.e vocl.e
sudo wget ftp://iraf.noao.edu/iraf/v216/support/linux/cl.e
sudo wget ftp://iraf.noao.edu/iraf/v216/support/linux/ecl.e
sudo wget ftp://iraf.noao.edu/iraf/v216/support/linux/vocl.e
sudo chmod +x cl.e ecl.e vocl.e