Copy file from another branch

git checkout another-local-branch path/to/file.js

• https://stackoverflow.com/questions/2364147/how-to-get-just-one-file-from-another-branch

navigate git history

git checkout HEAD^ # back
git checkout HEAD@{1} # go to previous HEAD position

Go forward

• https://stackoverflow.com/questions/6759791/how-do-i-move-forward-and-backward-between-commits-in-git

List ancestry (later) commits

From HEAD (older commit) to main branch (up-to-date)

git log --reverse --ancestry-path HEAD^..main

• https://stackoverflow.com/questions/2263674/how-do-i-find-the-next-commit-in-git-child-children-of-ref

sh/bash/zsh parameter and if check

bash script.sh iii

if [[ "$1" == "iii" ]]; then
    echo "første parameter er iii"
else
    echo "første parameter er ikke iii"
fi

Bash. check if a file exists

Check if prepush is activated or not

lsprepush() {
  if [[ -f ".git/hooks/pre-push" ]]; then
    echo ".git/hooks/pre-push was found:"
    echo "pre-push is activated"
  else
    if [[ -f ".git/hooks/pre-push.sample" ]]; then
      echo ".git/hooks/pre-push was not found:"
      echo "but .git/hooks/pre-push.sample was found:"
      echo "pre-push is deactivated"
    else
      echo "Hmmmmm"
    fi
  fi
}