appenv.sh

#!/bin/bash

export APP_ENV=$1
shift

if [ -z "$APP_ENV" ]; then
  echo "Usage: $(basename $0) APP_ENV [ARGUMENTS...]"
  echo "ARGUMENTS are forwarded to $(which env)"
  exit 1
fi

export APP_ROOT=/opt/myapp

if [ $APP_ENV = 'dev' ]; then
  export APP_DEBUG=1
else
  export APP_DEBUG=0
fi

# Your other configuration goes here!

exec env $*

gistfile1.txt

Example usages:

appenv.sh dev /path/to/script -a -b -c

appenv.sh prod EXTRA_ARG=234 /path/to/server --port=1234

appenv.sh dev > envs/dev
appenv.sh prod > envs/prod
diff envs/*