Common Bash functions that I use.

.functions

########
# Bash #
########

# download from youtube as mp3
# requires youtube-dl
function youtube-mp3 {
    youtube-dl --extract-audio --audio-format mp3 "$1"
}

# mkdir and cd into it
function mdir {
    mkdir -p "$1"
    cd "$1"
}

# clean contents of a dir
function cleandir {
    rm -rf "$1"
    mkdir "$1"
}

# Creates directories recursively and attaches a new file at the end
function grab {
    mkdir -p "$(dirname "$1")"
    touch "$1"
}

##########
# Python #
##########

# activate python env
function activate {
    DIR=""
    if [ -d ".venv" ]; then
        DIR=".venv"
    elif [ -d ".env" ]; then
        DIR=".env"
    elif [ -d "venv" ]; then
        DIR="venv"
    elif [ -d "env" ]; then
        DIR="env"
    else
        echo "No Python environment was found."
        return -1
    fi
    
    source "${DIR}/bin/activate"
    
    return 0
}

# creates python module
function mkpymod {
    mkdir "$1"
    touch "${1}/__init__.py"
}

# find in pip
function pipgrep {
    pip freeze | grep $1
}


#######
# Git #
#######
# delete git branch both locally and remotely
function git-delete-branch {
    git push origin --delete $1
    git branch -D $1
}

##########
# Django #
##########
function django-reset-migration {
	for var in "$@"
	do
		cd "${var}/"
		find . -path "*/migrations/*.py" -not -name "__init__.py" -delete
		find . -path "*/migrations/*.pyc"  -delete
		cd ..
		echo "Migrations were reset for ${var}."
	done
	echo "Do not forget to remove database and recreate it again."
}

#########
# Other #
#########
function gi() { curl -sL "https://www.gitignore.io/api/${1}" ;}

Resetting migrations method was taken from Simple is Better than Complex blog.