wrap the config variables in quotes
wrap the config variables in quotes

The problem:

```bash
$ heroku config:set\
>     WP_AUTH_KEY=`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`\
>     WP_SECURE_AUTH_KEY=`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`\
>     WP_LOGGED_IN_KEY=`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`\
>     WP_NONCE_KEY=`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`\
>     WP_AUTH_SALT=`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`\
>     WP_SECURE_AUTH_SALT=`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`\
>     WP_LOGGED_IN_SALT=`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`\
>     WP_NONCE_SALT=`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`

 !    Usage: heroku config:set KEY1=VALUE1 [KEY2=VALUE2 ...]
 !    Must specify KEY and VALUE to set.
```

The solution:

```bash
$ heroku config:set\
>     WP_AUTH_KEY="`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`"\
>     WP_SECURE_AUTH_KEY="`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`"\
>     WP_LOGGED_IN_KEY="`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`"\
>     WP_NONCE_KEY="`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`"\
>     WP_AUTH_SALT="`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`"\
>     WP_SECURE_AUTH_SALT="`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`"\
>     WP_LOGGED_IN_SALT="`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`"\
>     WP_NONCE_SALT="`dd if=/dev/random bs=1 count=96 2>/dev/null | base64`"

Setting config vars and restarting secure-thicket-3854... done, v6
>     WP_AUTH_KEY:                    ...
>     WP_AUTH_SALT:                  ...
>     WP_LOGGED_IN_KEY:         ...
>     WP_LOGGED_IN_SALT:       ...
>     WP_NONCE_KEY:                 ...
>     WP_NONCE_SALT:               ...
>     WP_SECURE_AUTH_KEY:   ...
>     WP_SECURE_AUTH_SALT: ...
```
eduardofelipevieira/cursodev,eduardofelipevieira/cursodev,benmcntsh/fortnite-builder,jorgeas80/heroku-wp,oddevan/heroku-wp,oddevan/heroku-wp,jorgeas80/heroku-wp,xyu/heroku-wp,xyu/heroku-wp,xyu/heroku-wp,oddevan/heroku-wp,benmcntsh/fortnite-builder,eduardofelipevieira/cursodev,benmcntsh/fortnite-builder,jorgeas80/heroku-wp