因为filehome 上小文件过多，所以du –sh * 过滤掉 filehome
du -sh /* --exclude="filehome"
1.1G /backup
7.8M /bin
6.8M /boot
#!/bin/bash
function ergodic(){
for file in `ls $`
do
if [ -d $"/"$file ]
then
ergodic $"/"$file
else
local path=$"/"$file
local name=$file
local size=`du --max-depth= $path|awk '{print $1}'`
echo $name $size $path
echo $size $name $path >> /tmp/file.txt
fi
done
} IFS=$'\n' #done
INIT_PATH=".";
ergodic $INIT_PATH sort -n /tmp/file.txt ####### 文件系统满的话，该如何处理。 .使用以上shell（file.sh）处理
.检查文件总大小是否小于df -k 的占用量,也就说明 进程没来得及释放日志文件，导致日志文件虽然被删除，但是进程仍然hold 空间
详细请见：（http://www.cnblogs.com/feiyun8616/p/6132670.html）
看到/tmp oracle:dba 目录/tmp/rda 消耗较高，总和小于df -k显示的占用量，看到有oracle 进程占用/tmp.怀疑是清理了空间后进程未释放空间，需要进一步确认
方法如下：
step1: From time to time the du command doesn’t match up with df. This is due to deleted but ‘still open’ file usage
lsof | awk '/deleted/ {sum+=$7} END {print sum}'
step 2: (check $2 is pid, manaul to kill the process)
lsof | grep deleted
(COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME)
for ksh #for ksh
#!/bin/bash
function ergodic {
for file in `ls $`
do
if [ -d $"/"$file ]
then
# echo $file
ergodic $"/"$file
else
# echo $
# echo $file
local path=$"/"$file
local name=$file
local size=`du -sk $path|awk '{print $1}'`
# echo $name $size $path
echo $size $name $path >> /tmp/file.txt
fi
done
} #IFS=$'\n' #done
INIT_PATH="/11_restore";
#echo $INIT_PATH
ergodic $INIT_PATH sort -n /tmp/file.txt
3.监控脚本本身异常 导致系统 误报。
大量未删除的文件 导致 脚本无法连接数据库，写入日志，出现如下提示。
[root@yidbmon1 ~]# /usr/sbin/lsof |grep home
bash 6623 oracle cwd DIR 253,8 12288 131223 /home/oracle/utility/macro
tnslsnr 6940 oracle cwd DIR 253,8 4096 131073 /home/oracle
bash 9990 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
bash 9990 oracle 254r REG 253,8 3493 143496 /home/oracle/11/osw_sort_11pr.sh
bash 9992 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
tee 9993 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
sh 11637 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
sh 11637 oracle 1w REG 253,8 1994113024 147308 /home/oracle/11/nohup.out (deleted)
sh 11637 oracle 2w REG 253,8 1994113024 147308 /home/oracle/11/nohup.out (deleted)
sh 11637 oracle 255r REG 253,8 3493 143496 /home/oracle/11/osw_sort_11pr.sh
sh 11639 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
sh 11639 oracle 2w REG 253,8 1994113024 147308 /home/oracle/11/nohup.out (deleted)
tee 11640 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
tee 11640 oracle 1w REG 253,8 1994113024 147308 /home/oracle/11/nohup.out (deleted)
tee 11640 oracle 2w REG 253,8 1994113024 147308 /home/oracle/11/nohup.out (deleted)
bash 20767 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
bash 20767 oracle 254r REG 253,8 2648 143598 /home/oracle/11/osw_sort_edrprod.sh
bash 20769 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
tee 20770 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
bash 21678 oracle cwd DIR 253,8 4096 2 /home
se.sh 23010 oracle cwd DIR 253,8 4096 142968 /home/oracle/monitor/ngtools/se
se.sh 23010 oracle 11r REG 253,8 2635 139902 /home/oracle/monitor/ngtools/se/se.sh
se.sh 23010 oracle 12r DIR 253,8 4096 142968 /home/oracle/monitor/ngtools/se
sh 26763 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26839 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26855 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26871 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26887 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26903 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26919 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26935 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26951 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26967 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 26983 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29049 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29065 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29081 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29097 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29113 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29129 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29145 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29161 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29177 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29193 oracle cwd DIR 253,8 4096 131073 /home/oracle
sh 29209 oracle cwd DIR 253,8 4096 131073 /home/oracle
sleep 29934 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
sleep 29934 oracle 2w REG 253,8 1994113024 147308 /home/oracle/11/nohup.out (deleted)
sleep 29957 oracle cwd DIR 253,8 4096 131099 /home/oracle/11
sleep 29988 oracle cwd DIR 253,8 4096 131099 /home/oracle/11