Bulk add remote host fingerprint in ~/.ssh/known_hosts using expect script
Script file below,
#!/usr/bin/expect -f
# adds server to known hosts list
# file containing list of hostnames is passed as 1st arg
set host_file [lindex $argv 0]
set f [open $host_file]
set hosts [split [read $f] "\n"]
close $f
foreach host $hosts {
if { $host != "" } {
spawn ssh $host
expect "yes/no)?"
send "yes\r"
expect "list of known hosts."
# send ctrl-c
send \x03
}
}
References
https://en.wikipedia.org/wiki/Expect
