linux-Remote Operation essay

Summary of operations that connect and interact with remote environments

First class: Enter the command mode directly in the Linux environment

1) FTP [email protected] #回车之后需要输入密码

Or: FTP Remoteip #回车后提示输入用户名和密码

2) sftp sftp=ssh+ftp

Usage: Login In the same way as FTP

3) SSH It is equivalent to SFTP

Usage: equivalent to SFTP

4) SCP is SSH+CP

SCP Local_file [Email Protected]_ip:remote_folder

Copy the file to the remote directory, download the parameter in turn

Specific detailed connection: http://www.cnblogs.com/hitwtx/archive/2011/11/16/2251254.html

Recommendation: Using FTP and SSH commands is almost the same as on-premises environments, and it is not recommended to use SFTP

Class II: Connecting to the server through scripting and executing commands

1.ftp: Way

###########################################################

# mv.sh

#实现向多台远程机器传输文件, and set instructions such as executable

###########################################################

#!/bin/ksh

Root=root

Pwd=pwd

remoteips= ' 10.71.148.15 10.71.148.23 '

For IP in $remoteips

Do

Ftp-in $ip <<eof

User $root $pwd

CD/

put/user/local.txt/home/n

# Append + R to add permissions to all sub-files in the file directory

chmod 755 Local.txt

Bye

Eof

Done

2.expect: Expect and BSH these are the same, but executing different statements that do not support Xshell scripts

Reference: http://www.cnblogs.com/iloveyoucc/archive/2012/05/11/2496433.html

##############################################################

# mv.exp "suffix can be. Sh"

#实现向多台远程机器传输文件 but can't manipulate other instructions because you don't know

#什么时候执行完, what comes last

##############################################################

#!/usr/bin/expect-f

#睡眠10秒

Set Timeout 10

#set等价于 = definition Initialization

Set username root

#[lindex $argv 0|1|2 ...] Fixed format representing parameters passed in from outside

Set password [lindex $argv 0]

Set hostname [lindex $argv 1]

#spawn indicates that the Execute instruction r represents the file directory

Spawn SCP LocalFile [email protected] $hostname

#① here's {} like Swich.

expect{

#匹配到一个直接执行然后就跳出, there's no

"Yes/no" {send "yes\r"; expect "password:"; Send "$pasword \ n"}

"Password:" {send "$password \ r"}

}

#send "Exit\r"

Expect EOF

Test: Can be called through a script loop:

./mv.sh $pwd $ip

##############################################################

# Remote Service and console interaction via SSH connection

##############################################################

#!/usr/bin/expect-f

Set Timeout 10

Set username root

Set Password Huawei

Set hostname [lindex $argv 0]

Spawn ssh [email protected] $hostname

expect{

#① equivalent to the EXP_CONTINUE directive means that continuing down execution is equivalent to case no break

"Yes/no" {send "yes\r"; Exp_continue}

"Password:" {send "$password \ r"}

}

#匹配控制台以 # End output, execute weighted instruction

Expect "*#"

Send "chmod +x-r remotefile";

Bye

Expect EOF

You can also use the key implementation does not need to enter the password login, but more than one remote need each key

Reference: http://www.linux360.com.cn/html/Linux/tutorial/0554/1392498954.html

Natively

>SSH-KEYGEN-T RSA

Generate public keys and keys #会在 ~/.ssh/

>chmod 755 ~/.ssh-r

#拷贝公钥到远程主. SSH under and renamed Authorized_keys

>SCP ~/.ssh/id_rsa.pub Remoteip:/home/user1/.ssh/authorized_keys

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linux-Remote Operation essay