shell 脚本为多个指定的目录创建报告

#!/bin/bash

check_directories="/var/log  /home"

DATE=$(date '+%m%d%y')

exec > disk_space_$DATE.rpt

echo "top ten disk space usage"

echo "for $check_directories directorice "

for dir_check in $check_directories

do

echo " "

echo "the $dir_check directory:"

du -S $dir_check 2> /dev/null |

sort -rn|

sed '{11,$D;=}' |

sed 'N;s/\n/ /' |

gawk '{printf $1 ":"  "\t"  $2  "\t"  $3  "\n"} '

done