Similar to Windows, in 'Nix, if a command is not in your $PATH (run "echo $PATH" to see), it will not "find" it. You have to specify a command's path manually if that's the case.

I didn't set up '/home/frog/bin' as a default path as a security precaution for now. You have to include the full path when calling the command:

sudo /home/frog/bin/config-steemd.bash miner Or use ~/, which represents $HOME (/home/frog):

sudo ~/bin/config-steemd.bash miner

Or even:

sudo $HOME/config-steemd.bash miner