linux检查磁盘空间

列出目录占用磁盘空间大于100M的目录

du -k | awk '$1>102400{print $1/1024"M  "$2}'

列出文件大小大于100M的文件

#!/bin/bash

# find file depth
dep=1
# exclude files, use '|'  segmentation. (cause: sbin link /usr/sbin , bin link /usr/bin ...)
excludeFiles='proc|dev|boot|bin|sbin|lib|lib64'
# file or dir max size(M), 100 => 100M
dirMaxSize=300
fileMaxSize=100

# find under / mindepth 1 maxdepth $dep directory
find `ls / | grep -Ev $excludeFiles | sed -rn 's#(.*)#/\1#p'` -mindepth 1   -maxdepth $dep -type d | while read d;
do

    dirSizeResult=`du -sm $d`

    size=`echo $dirSizeResult|awk '{print $1}'`
    
    if [ $size -ge $dirMaxSize ];then
        echo $dirSizeResult
        find $d -type f -size +${fileMaxSize}M -exec ls -lh {} \;
    fi

done