server# apt install expect

server# cat cisco_change_conf.exp

#!/usr/bin/expect

set sw [lindex $argv 0];

spawn ssh $sw
send "\n"
expect "sword:" { send "cisco\n" }

expect "#" { send "conf t\n" }
expect "#" { send "ip scp server enable\n" }
expect "#" { send "end\n" }

expect "#" { send "write\n" }
expect "#" { send "exit\n" }
send_user "\n"
exit 0

server# chmod +x cisco_change_conf.exp

server# ./cisco_change_conf.exp switchN

server# cat /srv/tftp/cisco_change_conf.txt

ip scp server enable
end

server# cat cisco_change_conf.exp

...
expect "#" { send "copy tftp://server/cisco_change_conf.txt runn\n" }
send "\n"
send "\n"
...