Tmux kill pane/window

Kill window/pane in tmux

<Prefix> & for killing a window

<Prefix> x for killing a pane

If there is only one pane (i.e. the window is not split into multiple panes, x would kill the window)

https://stackoverflow.com/questions/7771557/how-do-i-terminate-a-window-in-tmux

Usage for killing tmux windows/pane:

• if nvim freezes during :<,>DiffviewFileHistory or something

Check if a file exists (pre-push example)

Bash

Check existence

lpo() {
  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
}

Nvim edit file

po() {
  if [[ -f ".git/hooks/pre-push" ]]; then
    echo ".git/hooks/pre-push was found:"
    nvim .git/hooks/pre-push
  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:"
      nvim .git/hooks/pre-push.sample
    else
      echo "Hmmmmm"
    fi
  fi
}

Lua nvim edit file

function file_exists(name)
   local f=io.open(name,"r")
   if f~=nil then io.close(f) return true else return false end
end

function open_prepush()
  if file_exists(".git/hooks/pre-push") then
    vim.cmd("vsplit .git/hooks/pre-push")
  elseif file_exists(".git/hooks/pre-push.sample") then
    vim.cmd("vsplit .git/hooks/pre-push.sample")
  else
    vim.cmd("echo 'Hmmmmm'")
  end
end

vim.keymap.set("n", "<leader><leader>po", open_prepush, { desc = "Open pre-push a new split" })

Print current date

Print current date with Mac Shortcuts app

• Ctrl Alt a ---> 2026-02-25
• Ctrl Alt s ---> 25.02.2026

This card is mentioned in: https://useful-snippets.netlify.app/posts/autohotkey-replacements/

prepush / git hooks

To activate pre-push, rename .git/hooks/pre-push.sample to .git/hooks/pre-push

Example script:

GREEN='\033[0;32m'
RED='\033[1;91m'
RESET='\033[0m'

branch_name="$(git branch --show-current)"
allowed_branch_name="my-branch"

if [ "$branch_name" != "$allowed_branch_name" ]; then
  echo "Current branch: ${RED}${branch_name}${RESET}"
  echo "Allowed branch: ${GREEN}${allowed_branch_name}${RESET}" 
  echo
  echo "You can't push directly to this branch."
  exit 1
fi

Insert the current branch into the top of the pre-push file

sed -i "" "s&An example&$(git branch --show-current)\n# An example&" .git/hooks/pre-push 

Replace "An example" with current branch \n # An example

Copy current branch to Mac clipboard

echo $(git branch --show-current) | pbcopy 

From vim:

:!echo $(git branch --show-current) | pbcopy 

git reset soft | remove last commit and move code to working dir

git reset --soft HEAD~1

Snippets

VScode ...

Jetbrains - Live templates

live templates

(remove hyphens)

{-% for $ITEM$ in $LIST$ %-}
  $END$
{-% endfor %-}

console.log("$VAR$", $VAR$)

Neovim - luasnippets / iabbrev ...

se neovim config

Disable AI autocomplete

You can find all plugin settings at Preferences -> Editor -> General -> Code Completion -> Machine Learning-Assisted Completion -> Enable Full Line suggestions section.

https://plugins.jetbrains.com/plugin/14823-full-line-code-completion/documentation

UV python

Docs: https://docs.astral.sh/uv/

Install Python version: https://docs.astral.sh/uv/getting-started/features/#python-versions

uv python install <version>

Uninstall python version

uv python uninstall <version> 

Initialize project

uv init

Set correct python version in .python-version

(re)-build venv

uv venv

Updates .venv files

Activate venv environment

source .venv/bin/activate

deactivate

Install dependencies from requirements.txt

uv pip install -r requirements.txt

Install one single dependency

uv python add <package> 

Run package command

uv run <command> 

Cd to windows C-drive from WSL

cd /mnt/c/Users/Pål Stakvik

Bashe i en container

bash entry i docker-compose

service-name:
    stdin_open: true
    tty: true

Exec bash i Dockerfile / docker run:

• https://codesignal.com/learn/courses/diving-deeper-into-images-containers/lessons/explore-interactive-container-mode-with-docker
• https://www.baeldung.com/ops/docker-interactive-after-script

Start interactive shell on container:

docker run -it?

Already running container:

docker exec -it [container-name] /bin/bash

bash colors

GREEN='\033[0;32m'
RED='\033[1;91m'
RESET='\033[0m'

echo -e "${RED}Found errors:${RESET}" 

echo -e "${GREEN}Success!${RESET}" 

https://gist.github.com/JBlond/2fea43a3049b38287e5e9cefc87b2124

Regular Colors

Bold

Underline

Background

High Intensity

Bold High Intensity

High Intensity backgrounds

Reset

other styles

echo -e "\e[1mbold\e[0m"
echo -e "\e[3mitalic\e[0m"
echo -e "\e[3m\e[1mbold italic\e[0m"
echo -e "\e[4munderline\e[0m"
echo -e "\e[9mstrikethrough\e[0m"
echo -e "\e[31mHello World\e[0m"
echo -e "\x1B[31mHello World\e[0m"

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