Add an CGI (HTTP) header, don't redirect the output, remove the counter-productive sleep and remove the useless exit.

#!/usr/local/bin/tcsh
echo 'Content-Type: text/plain'
echo
# User on the host machine
set USER="shke42"
#bastion host (Julius)
set host="seres"
# target machine to be pinged
set target="10.207.41.205"
#ping file path on the host machine
set pingpath="/usr/sbin"
# remote loging to host and ping the target machine
ssh $USER@$host ${pingpath}/ping $target
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