Problem pull push pull_boot

[remboshelby]

Сan you explain the difference between files

1. recovery_pull.img (as I understand with file is recovery.img, such as twrp)
2. recovery_push.img (when I try make push your script say that this such file doesnt exist)
3. boot_pull.img (after rename recovery_pull and pushing it to foulder '/data/local/tmp/', comand make push runs successfully, but when i try make pull_boot i have same situation)
   What's wrong?

My phone Honor 8 (security patch 1 september 2016)
P.s I'm a beginner developer