How to Use SCP to enter a password in the script

In the past, SCP files were all based on. Ssh.

However, using SCP in the script to copy files between machines becomes a problem.

The first method is CT.

The script is as follows:

#! /Usr/bin/CT-F

Spawn SCP 1 [email protected]:

Reset CT "* password :"

Send "your password \ r"

CT EOF

Of course, it's not just SCP, but other commands can also be automated using reverse CT.

Loop processing:

Spawn SCP 1 [email protected]:

For {set I 1 }{$ I <500} {incr I }{

Keep CT {"* password:" {send "Koven \ r "}

"* (Yes/no) *" {send "Yes \ r "}

}

}

Note that there is a space between braces.

The second method is to use the key file.

Assume that host a (192.168.100.3) is used to obtain the file of host B (192.168.100.4.

Run the following command on host a to generate a pair key:

Ssh-keygen-T RSA

When the prompt "Press ENTER" is displayed, the Public Key is saved to the. Ssh directory under the user directory. For example, root is stored in:

/Root/. Ssh/id_rsa.pub

Copy the id_rsa.pub file in the. Ssh directory to the ~ of host B ~ /. Ssh/directory, and renamed it authorized_keys,

Run the command in host a to establish trust with host B. For example, assume host B's IP address is 192.168.100.4 ):

SCP ~ /. Ssh/id_rsa.pub 192.168.100.4:/root/. Ssh/authorized_keys

The SCP and SSH commands can be used to obtain the files of host B without a password.

SSH 192.168.100.4 and press Enter.

Note: in fact, the id_rsa.pub content can be added to the authorized_keys of the other machine.

Bytes -----------------------------------------------------------------------------------------------------

#! /Usr/bin/CT-F

Set Password

Spawn SCP username @ target machine IP Address: Path of the copy file to store the local file

Set timeout 300

Login CT "username @ destination machine IP address's password:" # Note: The "username @ destination machine IP Address" here is consistent with the above

Set timeout 300

Send "$ password \ r"

Set timeout 300

Send "Exit \ r"

CT EOF

Appendix: SCP Parameters

-R: Copy directory

-C: compression allowed

A complete example

#! /Usr/bin/CT-F

Set Password 123456

# Download

Spawn SCP [email protected]:/root/a. wmv/home/yangyz/

Set timeout 300

Reset CT "[email protected]'s password :"

Set timeout 300

Send "$ password \ r"

Set timeout 300

Send "Exit \ r"

CT EOF

# Upload

Spawn SCP/home/yangyz/ABC. SQL [email protected]:/root/test. SQL

Set timeout 300

Reset CT "[email protected]'s password :"

Set timeout 300

Send "$ password \ r"

Set timeout 300

Send "Exit \ r"

CT EOF

########

PS: Always CT needs to be installed first

How to Use SCP to enter a password in the script