1. Create tar archive: tar -czvf LotsOfFiles.tgz LotsOfFiles
2. Uncompress tar archive: tar -xvf LotsOfFiles.tgz
3. Delete all files with specific extension in dir: find . -name "*.DS_Store" -type f -delete
4. List all files with specific extension in dir: find . -name "*.DS_Store" -type f
5. List all directories that contain specific character (underscore in this case): find . -name '*_*' -type d
6. Remove docker image: sudo docker rmi -f <IMAGE ID>
7. Stop process for docker container docker rm name_of_the_docker_container
8. git reset --hard origin/main
9. Stage only deleted files git: git ls-files --deleted | xargs git add
10. Get vim on ubuntu machine: apt-get update && apt-get install apt-file -y && apt-file update && apt-get install vim -y
11. List files changed in commit (by hash): first git log and then git show --pretty="" --name-only <hash>
12. Undo last commit from local: git reset --soft HEAD~1
13. Undo last commit from remote: first git reset HEAD^ and then git push origin +HEAD
14. Restore uncommited deleted file: first git reset HEAD <file> and then git checkout -- <file>
15. List all conda envs created on system: conda env list
16. Find text in dirs: grep -rnw '/path/to/somewhere/' -e 'pattern'
17. Display all available GPUs: lspci -k|grep -iA2 "VGA"
18. List all of your conda environments: conda info --envs
19. Disable conda on startup: conda config --set auto_activate_base false
20. Discard local changes on one file: git checkout -- <file>
21. Default location for saving generated SSH keys: /Users/<username>/.ssh/
22. Give sudo permissions to user: sudo usermod -aG sudo <user>
23. Commit changes made to Docker container: docker commit <container_id> new_image_name:tag
24. Tag Docker image: docker tag <image_id> username/repository:tag
25. Push Docker image: docker push username/repository:tag

Feel free to open a PR to add other useful commands.