About continuations radare offers multiple commands for handling process continuations:
!cont ; continue execution
!contu [addr] ; continue until address using a breakpoint
!contuh ; continue until here
!contsc ; continue until syscall (strace)
!contfork ; continue until new child is created
The 'contuh' command is quite useful when analyzing loops, because allows you to easily complete a loop without having to manually setup breakpoints.