Run bin/magento from anywhere in your Magento 2 installation

bin-magento.sh

#!/usr/bin/env bash

# Detect magento
#
# Adapted from Alan Storms approach
# to finding the Magento root by traversing up from the current
# directory checking for the existence of the di.xml file.
#
# Ref: https://github.com/astorm/pestle/blob/master/modules/pulsestorm/magento2/cli/library/module.php#L57
di="app/etc/di.xml"
root=$(pwd);
while ! [ -f "$(pwd)/$di" ]; do
    if [ "$(pwd)" == "/" ]; then
        echo -e "Could not locate Magento 2 root directory" && exit 1
    fi
    cd ..
    root=$(pwd)
done

# Store full path and
# check that bin/magento is executable
path="${root}/bin/magento";
if ! [ -x ${path} ]; then
    echo -e "${path} is not executable. Run chmod +x ${path}" && exit 1
fi

# We have found the magento bin and it is
# executable so run it passing
# all original options
${path} $@