Bash example for `wp core is-installed` is not quite right

[lilole]

The docs at https://developer.wordpress.org/cli/commands/core/is-installed/#examples show an example like this:

# Bash script for checking whether WordPress is installed or not
if ! $(wp core is-installed); then
    wp core install
fi

But that if is not right. It's testing whether the stdout of the wp core is-installed command is true or false.

The fix is simple, just remove the command substitution, like:

if ! wp core is-installed; then
    wp core install
fi

[ffxluca]

If only that command did not exit with 0 in case of db errors....

wp core is-installed; echo $?

<div id="error"><p class="wpdberror"><strong>WordPress database error:</strong>
...
0

[schlessera]

@ffxluca:
Do you have a custom WP_CONTENT_DIR . '/db-error.php' file in your installation?

[danielbachhuber]

This was improved with #237