Shell bulk SSH free Interactive login host

Scripting features: Batch or single SSH-free login authentication

Script scenario: When deploying a cluster, most implementations want to configure the management node with SSH-free login from the node, writing the following script to simplify the task.

#!/bin/bash# blog:http://lizhenliang.blog.51cto.com color_echo ()  {    if  [ $1 ==  "Green"  ]; then        echo  -e  "\033[32;40m$2\033[0m"     elif [ $1 ==  "Red"  ];  then        echo -e  "\033[31;40m$2\033[0m"      fi}check_ssh_auth ()  {    ssh  $INFO   ' Echo yes >/dev /null '     if [ $? -eq 0 ]; then         color_echo green  "host  $IP  SSH authentication  Successfully. "     else        color_echo red  "Host   $IP  ssh authentication failure! "          exit    &Nbsp;fi}os_version ()  {    os_v=$ (cat /etc/issue |awk  ' NR==1{print  $1} ')     if [  $OS _v ==  "\s"  -o  $OS _v ==  " CentOS " ]; then        echo " CentOS "     elif [  $OS _v ==  "Ubuntu"  ]; then         echo  "Ubuntu"     fi}if ! $ (which expect >/dev/null);  then    if [ $ (os_version)  ==  "CentOS"  ]; then         yum install expect -y    [ $ ? -ne 0 ] && color_echo red  "The expect installation  failure! "  && exit 1    elif [ $ (os_version)  ==  "Ubuntu"  ]; then        apt-get install expect -y         if [ $? -ne 0 ]; then             apt-get install expect --force-yes -y             [ $? -ne 0 ]  && color_echo red  "the expect installation failure!"  && exit 1        fi     Fifiif [ ! -e ~/.ssh/id_rsa.pub ]; then     color_echo  green  "the public/private rsa key pair not exist, start  Generating ... "    expect -c "          spawn ssh-keygen     &Nbsp;  expect {            \ "Ssh/id _RSA): \ " {send \" \r\ ";exp_continue}             \ "(empty for no passphrase): \"  {send \ "\r\";exp_continue}             \ "Again:\"  {send \ "\r\"; Exp_continue}         }      " >/dev/null 2> &1    if [ -e ~/.ssh/id_rsa.pub ]; then         color_echo green  "Generating public/private rsa key  pair successfully. "     else        color_echo red  " generating public/private rsa key pair failure! "     fifiif [[ $1 =~ ^[a-z][email protected][0-9]{1,3}\. [0-9] {1,3}\. [0-9] {1,3}\. [0-9] {1,3}@.* ]]; then    for i in [email protected]; do         user=$ (echo  $i |cut [email protected] -f1)         ip=$ (echo  $i |cut [email protected] -f2)         pass=$ (echo  $i |cut [email protected] -f3)         [email protected] $IP          expect -c  "            spawn  ssh-copy-id  $INFO             expect  {                \ "(yes/ NO)? \ " {send \" yes\r\ "; exp_continue}&nbsP;               \ "Password:\"  {send \ "$PASS \r\";exp_continue}             }         " >/dev/null 2>&1         check_ssh_auth    doneelif [[ $1 =~ ^[ A-z][email protected][0-9]{1,3}\. [0-9] {1,3}\. [0-9] {1,3}\. [0-9] {1,3}-[0-9]{1,3}@.* ]]; then    start_ip_num=$ (echo $1|sed -r  ' s/ .*\. (. *)-(. *) @.*/\1/')     end_ip_num=$ (echo $1|sed -r  ' s/.*\. *)-(. *) @.*/\2/')     for  ((i= $START _ip_num;i<= $END _ip_num;i++)); do         user=$ (ECHO&NBSP;$1|CUT&NBSP;[EMAIL&NBSP;PROTECTED]&NBSP;-F1)          pass=$ (ECHO&NBSP;$1|CUT&NBSP;[EMAIL&NBSP;PROTECTED]&NBSP;-F3)         ip_range=$ (echo $1|sed -r   ' s/.*@ (. *\.). */\1/')         ip= $IP _range$i         [email protected] $IP _range$i        expect -c   "            spawn ssh-copy-id $ info            expect {                 \ "(yes/no)? \"  {send \ " Yes\r\ ";exp_continue}                 \ "Password:\"  {send \ "$PASS \r\";exp_continue}             }         " >/dev/null 2> &1        check_ssh_auth    doneelse     echo  "example1: $0 <[email protected" @password > "    echo " Example2: $0 [[email protected] @password  [email protected] @password  [email  Protected] @password &nbsp ...] " Fi

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This article is from the "Li Zhenliang Technology Blog" blog, make sure to keep this source http://lizhenliang.blog.51cto.com/7876557/1736179

Shell bulk SSH free Interactive login host