S1.shell脚本每日一练_(4)编写脚本 backup.sh,可实现每日将 /etc/ 目录备份到 /backup/etcyy

1.编写脚本backup.sh，可事先每日将/etc目录备份到/backup/etcYYYY-mm-dd中

[root@rocky8 ~]# cat backup.sh
#!/bin/bash
#
#**********************************************************************************************
#Author:        Raymond
#QQ:            88563128
#Date:          2021-10-09
#FileName:      backup.sh
#URL:           raymond.blog.csdn.net
#Description:   The test script
#Copyright (C): 2021 All rights reserved
#*********************************************************************************************
COLOR='\E[1;31m'
COLOR_END='\E[0m'
SRC=/etc
DEST=/backup

echo -e ${COLOR}Starting backup...${COLOR_END}
sleep 2
cp -av $SRC $SRC$DEST`date +%F_%H-%M-%S`
echo -e ${COLOR}Backup is finished${COLOR_END}
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2.编写脚本 systeminfo.sh，显示当前主机系统信息，包括:主机名，IPv4地址，操作系统版本，内核版本，CPU型号，内存大小，硬盘大小

[root@rocky8 ~]# cat systeminfo.sh
#!/bin/bash
#
#**********************************************************************************************
#Author:        Raymond
#QQ:            88563128
#Date:          2021-10-09
#FileName:      systeminfo.sh
#URL:           raymond.blog.csdn.net
#Description:   The test script
#Copyright (C): 2021 All rights reserved
#*********************************************************************************************
RANDOM_COLOR="\E[1;"$[RANDOM%7+31]"m"
GREEN="echo -e \E[1;32m"
COLOR_END="\E[0m"
ETHNAME=`ifconfig |head -1| tr -s ":" " "|cut -d" " -f 1`

$GREEN----------------------Host systeminfo--------------------$COLOR_END
echo -e  "HOSTNAME:     $RANDOM_COLOR`hostname`$COLOR_END"
echo -e  "IPADDR:       $RANDOM_COLOR` ifconfig $ETHNAME|grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' |head -n1`$COLOR_END"
#echo -e  "IPADDR:       $RANDOM_COLOR` hostname -I`$COLOR_END"
echo -e  "OSVERSION:    $RANDOM_COLOR`cat /etc/redhat-release`$COLOR_END"
echo -e  "KERNEL:       $RANDOM_COLOR`uname -r`$COLOR_END"
echo -e  "CPU:          $RANDOM_COLOR`lscpu|grep '^Model name'|tr -s ' '|cut -d : -f2`$COLOR_END"
echo -e  "MEMORY:       $RANDOM_COLOR`free -h|grep Mem|tr -s ' ' : |cut -d : -f2`$COLOR_END"
echo -e  "DISK:         $RANDOM_COLOR`lsblk |grep '^sd' |tr -s ' ' |cut -d " " -f4`$COLOR_END"
$GREEN---------------------------------------------------------$COLOR_END
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