空间使用率告警，列出目录下大文件的脚本

老脚本，分享一下，df -h发现使用率告警，找出占用空间的大文件的shell脚本。

#!/bin/ksh
#Authorname :wangt009
#Scriptname :pwdanalyse.sh
#Version    :v1.0  20170825   #create
#Description:analyse pwd 's usage


export PATH=/usr/lib64/qt-3.3/bin:/usr/local/python27/bin:/usr/local/bin/:/qhapp/sysinfo/bin:/qhapp/ump/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/lib/oracle/11.2/client64/bin:/root/bin:/qhapp/sysinfo/bin:/qhapp/ump/bin/
TIMESTAMP=`date +"%Y%m%d%H%M%S"`
TMPFILEA=/tmp/pwdanalyse.TMPFILEA.$TIMESTAMP
func_getpwdinfo(){
NUM=0
du -ak $PWDINFO|sort -nr>$TMPFILEA
cat $TMPFILEA|while read name
do
  SIZE_K=`echo $name|awk '{print $1}'`
  FILEINFO=`echo $name|awk '{print $2}'`
  if [ -f $FILEINFO ]
  then 
    NUM=`echo $NUM+1|bc`
    SIZE_M=`echo $SIZE_K/1024|bc`
    echo $NUM  $SIZE_M"MB"  $FILEINFO    
    if [ $NUM -eq $MAXFILENUM ];  then exit;  fi
  fi
done|awk '{printf"%-4d%-10s%-10s\n",$1,$2,$3}'
}


func_help(){
if [ "$1"x == '-hx' ]
then
echo "usage   : pwdanalyse.sh [pwdinfo] [maxfilenum]"
echo "example : pwdanalyse.sh /tmp/ 10                        #pwd is /tmp/ , max num of biggest files is 10."
echo "example : pwdanalyse.sh                                 #default value.pwdinfo=/qhapp/,maxfilenum=20."
echo "example : pwdanalyse.sh -h                              #print help info. "
exit
fi


}


#################main#####################
if [ "$1" ] 
then 
func_help $1
PWDINFO=$1 
else 
#PWDINFO=/ebsapp
#PWDINFO=/opt
PWDINFO=/qhapp
fi

if [ ! "$2" ] ;then MAXFILENUM=20;else MAXFILENUM=$2;fi
func_getpwdinfo $PWDINFO $MAXFILENUM
rm $TMPFILEA

使用方法：

sz180001:root@/qhapp/ump/bin>pwdanalyse.sh -h

usage   : pwdanalyse.sh [pwdinfo] [maxfilenum]
example : pwdanalyse.sh /tmp/ 10                        #pwd is /tmp/ , max num of biggest files is 10.
example : pwdanalyse.sh                                 #default value.pwdinfo=/qhapp/,maxfilenum=20.
example : pwdanalyse.sh -h                              #print help info.