What's wrong with the attached bash one-liner?

Question

bash

echo $(for i in {100..104}; do ping –c 1 192.168.55.$i >/dev/null && echo 192.168.55.$i is up; done)

upd1: Throws an error: usage: ping [-AaDdfnoQqRrv] [-c count] [-G sweepmaxsize] etc.

upd2: The problem was in a dash instead of a hyphen, in the -c section 1

Answer 1

echo $(for i in {100..104}; do ping 192.168.55.$i -c 1 >&/dev/null && echo 192.168.55.$i is up; done)

PS: But in fact, it's better to do it like this:

seq 100 104|xargs -i sh -c 'ping -c 1 192.168.55.{} >&/dev/null && echo 192.168.55.{} is up'