Linux Shell Login Displays welcome or machine information

Write the background of this script: because more and more machines are being managed, each login machine can display the information of the corresponding machine to prevent mis-operation.

At the same time, the individual working environment has many springboard machines, but also easy to operate the error, so each machine added a login display.

Create a login display script

Modify

Vim/etc/profile

On the last line join

/usr/local/bin/login.sh

Put the script login.sh to/usr/local/bin

chmod 755/usr/local/bin/login.sh

The script content is as follows (only CENTOS6 and CENTOS7 test pass)

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#!/bin/bash#server os infoos_version= ' if  grep -q  ' release 6 '  /etc/ redhat-release ; then        os_version= ' CentOS6 ' else          os_version= ' CentOS7 ' fiecho -e  "##################### ########### #Server  info################################################# "hostname= ' hostname ' ECHO -E   "hostname     =   $hostname" osinfo= ' Cat /etc/redhat-release ' echo  -e  "os info      =   $osinfo" kernelinfo= ' uname -r ' echo -e  "linuxkernel  =   $kernelinfo" kernelmac= ' uname -m ' echo -e  "hw machine   =   $kernelmac" cpu= ' cat /proc/cpuinfo | grep  " Model name " | head -n 1 | awk -F ": " " {print $2} "' Echo  -e  "CPu info     =   $CPU "if [ ${os_version} ==  ' CentOS6 '  ];then        network= ' Ifconfig -a  | awk   ' begin {fs= ' \ n ';  rs= ""} {print $1,$2} '  | grep -v  ' lo '  |   awk  ' {print  ' \t\t ' $1,$7} ' else        network= ' ifconfig -a  | awk  ' begin {fs= "\ n";  rs= ""} {print $1,$2} '  |  grep -v  ' lo '  |  awk  ' {print  ' \t\t ' $1,$6} ' fiecho -e  ' Network info = \n$network "externalip=$ (timeout 3 curl -s ipecho.net/plain; echo) [ $? -ne 0 -o  ' X '  ==  ' $externalip ' x ] &&  externalip= ' No outside network or acl drop ' echo -e  "External IP   =   $externalip "ECho -e  "--------------------------------------------------------------------------------------------- "Username= ' WhoAmI ' echo -e " username    =   $Username "echo -e  "userhomedir =   $HOME" echo -e  "------------------------------------------------------ ---------------------------------------"

Log back in to the machine and display the following

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Displays the working directory of the current user when switching to another user

This article is from the "Go to the Origin dimension" blog, please make sure to keep this source http://yuanji6699.blog.51cto.com/11568362/1908044

Linux Shell Login Displays welcome or machine information