ls add host name prefix?

Question

Is there a compact way to list files, with the host name prepended? My efforts to combine ls, xargs, paste and process substitution have failed me.

This is the best I came up with:

ls * | paste  <(echo $HOST)

Ultimately I want to list a bunch of files across multiple hosts by invoking a series of ssh commands so that I can do something like this:

ssh host1 "ls_with_hostname_prefix /var/log/*"
ssh host2 "ls_with_hostname_prefix /var/log/*"
ssh host3 "ls_with_hostname_prefix /var/log/*"

Answer 1

Related question on SO. You can simply do

ls | sed -e 's/^/$HOST /'

You probably want to store it as a script on the remote hosts or merge it even with the ssh:

function remote_ls_with_alias() {
  ssh $1 "ls $2 | sed -e \"s/^/$1 /\""
}

and run it as

remote_ls_with_alias host1 "/var/log/*"
remote_ls_with_alias host2 "/var/log/*"
remote_ls_with_alias host3 "/var/log/*"