for h in host1 host2 host3; do \
        echo -e "\n$h\n===========\n"; \
        ssh $h 'ln -s /some/path /path/to/link && ls -l /path/to/link'; \
    done

Exactly.

One-offs are easy to test interactively with cssh, and despite what anyone thinks, there are always one-offs in the real world.

In short, use automation with care.

Thank you for this comment, I never knew you could pass commands to ssh.

Example:

dsh -Mg all-machines -F 20 'do something'

-M: Prepend any line of output with the machine that emitted it

-g: runs the group all-machines (just a text file in etc/dsh/group)

-F 20: forks at most 20 copies of ssh in the background so you don't overload the server you're running this from

    for i in `seq 1 30`; do \
        echo -e "\nhost$i\n===========\n"; \
        ssh host$i 'ln -s /some/path /path/to/link && ls -l /path/to/link'; \
    done

  for i in `seq 1 30`
  do
     commands
     more commands
  done

Good point about not needing semicolons for multiple-line stuff (assuming the EOL's are not escaped, as you have it in your example). I blame the PHP I spent all week immersed in...bleh.

    for i in {1..30}; do...