Script create local branch and after that set upstream branch

git-feature

#!/bin/bash

if [ x = x${1} ]; then
    echo ">>> Enter branch name"
    exit 1
fi

if [[ $1 == feature* ]]
then
	BRANCH_NAME=$1
else
	BRANCH_NAME="feature/$1"
fi

RESULT=$(git rev-parse --verify --quiet $BRANCH_NAME) # https://gist.github.com/tennisonchan/e00212e3ed5498060c50d390233a3e1f

if [ ! -z "$RESULT" ] # https://serverfault.com/questions/7503/how-to-determine-if-a-bash-variable-is-empty
then
   echo "Branch named \"$BRANCH_NAME\" already exists."
   exit 1
fi

git checkout -b $BRANCH_NAME
git push -u origin $BRANCH_NAME