统计子目录大小的shell脚本

#/bin/sh
#
# File: totalsize.sh
# Use : show the size of the files and sub directories
#

if [ $# -gt 0 ]
then
     echo "Usage: $totalsize.sh  (Note: no arguments)"
     exit
fi

bgntime=`date +%s` 
tmpval=$1
totalsize=0
totalsizedir=0
echo "1) Files"
echo "     MB              KB                   File"
echo "------------------------------------------------------------------------"
#NF   the nums of fields per row
ls -l $1 |grep -v ^d  |sort -n  +4 |awk '(NF > 2){totalsize=totalsize+$5;printf "%14.3fM  %14.3fK  %s\n",$5/1024/1024M,$5/1024,$NF} END{ printf "------------Total:%fM-------------",totalsize/1024/1024}'|sed 's:/.*/\([^/]\{1,\}\)$:\1:g'

echo 
echo

echo "2) Dirs"
echo "     MB              KB                   Directories"
echo "------------------------------------------------------------------------"
du $1 --max-depth=1 | sort -n|awk '$2!="." {totalsizedir=totalsizedir+$1;printf "%14.3fM  %14.3fK  %s\n",$1/1024,$1,$2} END{printf "--------------Total: %fM---------------\n",totalsizedir/1024 }'|sed 's:/.*/\([^/]\{1,\}\)$:\1:g'

endtime=`date +%s`
echo "Total Time: $(($endtime-$bgntime))s"