#1创建一个简单的磁盘监测scripts工具

Posted 2021-03-15 liii

Main ：

exec - 永久重定向命令，exec命令启动一个新的shell并将所有STDOUT文件描述符重定向到文件，脚本中输出的所有文件会被STDOUT到文件 

#!/bin/bash
#
#################################################
# parameters for script
# du -S /var/log | sort -rn | sed ‘{11,$D;=}‘ | sed ‘N; s/
/ /‘ | gawk ‘{printf ":" $1 "	" $2 "	" $3 "
"}‘
#
################# Main script ################################
#
dir_check="/var/log/  /home/* "
#
DATE=$(date "+%y%m%d")
#
exec 1>> disk_space_$DATE.rpt      #Make report file stdout
#
echo
echo "#1.Top ten disk space usage"
echo "#2.the $dir_check directory"
echo 
#
for check_loop in $dir_check
do 
	du -S $check_loop | sort -rn | sed ‘{11,$D;=}‘ | sed ‘N; s/
/ /‘ | gawk ‘{printf  $1 ")" "	" $2 "	" $3 "
"}‘
done
#
#