Karel's actions

After reading the standard packet <#2501#>karel<#2501#> by means of the packet-command (<#2502#>p<#2502#>) he can perform the following actions:

• <#2504#>start karel<#2504#>
  Sets up the world, with Karel in the lower left corner with his nose pointing to the north;
• <#2505#>turn right<#2505#>
  Karel makes a right turn;
• <#2506#>turn left<#2506#>
  Karel makes a left turn;
• <#2507#>move<#2507#>
  Karel moves one corner forward in the direction of his nose;
• <#2508#>take beeper<#2508#>
  Karel takes the beeper (if any) from the present corner and puts it into his pocket;
• <#2509#>drop beeper<#2509#>
  Karel takes a beeper from the limitless supply in his pocket and leaves it at the present corner;
• <#2510#>stop<#2510#>
  Makes an end to Karel and his world, lifting him from the screen.