1.查看主机系统信息

实例：脚本实现

[root@CentOS7 shellscript]# vim systeminfo.sh
#!/bin/bash
#
#**********************************
# Author:      wanghongrong
# Date:        2021-05-10
# FileName:    systeminfo.sh
# Url:         http://www.werida.com
# Copyright(C):2021All rights reserved
#**********************************

echo "OS:         $(uname)"
echo "OS ver:     $(cat /etc/redhat-release | cut -d ‘ ‘ -f 2,4)"
echo "HOSTNAME:   $(hostname)"
echo "ipv4 addr:  $(ip a | grep global | cut -d ‘ ‘ -f 6)"                                                                    
echo "kernel ver: $(uname -a | cut -d ‘ ‘ -f 3)"
echo "CPU model:  $(cat /proc/cpuinfo | grep name | cut -f2 -d :|uniq)"
echo "mem size:   $(free -mh | grep Mem | cut -f12 -d ‘ ‘)"
echo "disk size:  $(df -h | grep ^/.* | cut -d ‘ ‘ -f1,8)"
[root@CentOS7 shellscript]# sh systeminfo.sh 
OS:         Linux
OS ver:     Linux 7.2.1511
HOSTNAME:   CentOS7.localdomain
ipv4 addr:  10.0.0.7/8
172.17.0.1/16
kernel ver: 3.10.0-327.el7.x86_64
CPU model:   Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz
mem size:   1.8G
disk size:  /dev/sda2 
/dev/sda5 142G
/dev/sda1 997M

查看centos系统信息详解

原文：https://www.cnblogs.com/hony625/p/14751585.html