Bypassing Space Filters

Use what you learned in this section to execute the command 'ls -la'. What is the size of the 'index.php' file?

Even we if we found a way to bypass a blacklist, it does mean we can successfully append any command.

As this section suggest, we should use Bash Brace Expansion, which automatically adds spaces between arguments wrapped between braces: {ls,-la}

And the correct answer is 1613.