find . -type f | wc -l

for((i=51;i<=100;i+=1)); do echo "real_"$i"_farm_galmap.err"; done

for((i=1;i<=50;i+=1)); do convert -trim "bicep2_sim_apo_E_relz"$i".png" "bicep2_sim_apo_E_relz"$i".png"; done

screen

https://www.rackaid.com/blog/linux-screen-tutorial-and-how-to/

aplpy

https://aplpy.github.io