sftp 使用 expect 自动传输文件不起作用

Question

I want automate below command so as to pass the password and proceed with file transfer.

#This command works well but it will require password
echo "put This_file_from_server_a.csv /TO/THIS/SERVER_B/PATH" | sftp remote@10.11.12.13

i have tried to use expect , so as to automate/ send password automatically, but it is not working ie

expect -c 'spawn "put This_file_from_server_a.csv /TO/THIS/SERVER_B/PATH" | sftp remote@10.11.12.13; expect "assword:"; send "THE_PASSWORD\r"; interact'

I get error

send: spawn id exp4 not open while executing "send "THE_PASSWORD\\r""

What could be the issue? without considering alternatives: such as sshpass , lftp , private keys ...

Answer 1

Consider creating private keys on both servers that you are trying to do the transaction then try doing the same, it should work

in case it does not use expect as below.

expect  <<'END_EXPECT'
set timeout -1
spawn sftp remote@10.11.12.13
expect "assword:"
send "THE_PASSWORD\r"
expect "sftp>"
send "put This_file_from_server_a.csv /TO/THIS/SERVER_B/PATH\r"
expect "sftp>"
send "quit\r"
expect eof
END_EXPECT