One command to install WP-CLI on hosting using alias (if you cannot move wp-cli.phar in PATH)

inf-install-wp-cli.sh

#!/bin/bash

# initialy https://gist.github.com/ajaegers/d4c5286e52581821cb43

PATH=/opt/php/bin:/usr/bin:/bin
URL="https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar"
NAME="wp-cli.phar"

cd

if [ -d bin ] && [ -e bin/$NAME ]; then
	echo "Error: WP-CLI already installed" >&2
	exit 1
fi

echo '1. Downloading WP-CLI in ~/bin/...'

mkdir -p bin
pushd bin > /dev/null

if ! curl -O $URL; then
	echo "Error: could not download $NAME" >&2
	exit 1
fi

chmod +x $NAME
popd > /dev/null

echo '2. WP-CLI test...'

php bin/$NAME --info

echo '3. Making wp alias...'

if ! [ -e .bash_aliases ] || ! grep -q "^alias wp=" .bash_aliases; then
	echo "alias wp='php ~/bin/$NAME'" >> .bash_aliases
fi
source ~/.bash_aliases

echo '4. Making bash wp alias to be available on each login...'

if ! [ -e .bash_profile ] || ! grep -q '\.bash_aliases' .bash_profile; then
	cat >> ~/.bash_profile <<-EOD
	if [ -f ~/.bash_aliases ]; then
		. ~/.bash_aliases
	fi
	EOD
fi

echo '5. Finished :)'