pre-push hook to prevent from accidently pushing to master/develop/whateverbranch

pre-push

#!/bin/bash

## add your branches here, like 
## protected=('master' 'development' 'yourbranch')
protected=('master' 'develop')
current_branch=$(git rev-parse --abbrev-ref HEAD)

if (printf '%s\n' "${protected[@]}" | grep -xq $current_branch)
then
    read -p "really push to $current_branch? [y|n] " -n 1 -r < /dev/tty
    echo
    if echo $REPLY | grep -E '^[Yy]$' > /dev/null
    then
        exit 0 # push will execute
    fi
    exit 1 # push will not execute
else
    exit 0 # push will execute
fi

1. copy to .git/hooks/pre-push
2. chmod +x .git/hooks/pre-push