expect中為send語句上加變數的程式碼

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複製程式碼 程式碼如下:
#!/usr/bin/expect
set ssh_user “fivetrees”
set password “123456”
spawn ssh -i /root/.ssh/$ssh_user  [email protected]
expect_before “no)?” {
send “yes\r” }
sleep 1
expect “Enter passphrase for key*”
send “$password\r”
for {set snum 0} {$snum <= 6} {incr snum} {
expect “*#”
send “ls -l /opt/backup/fivetreesdb_s$snum\r”
sleep 3
}
sleep 2
expect “*#”
send “echo\r”
exit