Using :cd with stdout from external command

Question

I try to create a command to change directory in active window:

command <cmd> :cd <stdout of external_command>

Tried with :cd {<external_command>} and :execute '<external_command>' :cd %u without success. An example will be helpful.

Answer 1

Using :execute was correct idea, but you also need to use system() function to get the output of an external command:

command! gohome :execute 'cd' system('echo $HOME')

For paths that have spaces this should be better:

command! gohome :execute "cd '".system('echo $HOME')."'"

Comments

Thanks for the help. Works like a charm