shell_my

  DIR=/unipost_bak/tongji/yd
cd $DIR
echo "请输入统计年月(200503):\c"
read aa
#yidi
grep "交易成功率" *$aa* > aa
awk -F":" 'substr($1,1,4)=="ydjy" {print substr($1,5,8),$5}' aa > aaa
awk -F":" 'substr($1,1,4)=="ydkh" {print substr($1,5,8),$5}' aa > bbb
join -a 1 -a 2 aaa bbb > cc
awk '{print $1,($2+$3)/2}' cc > ccc
sort -k 2 ccc|awk '(NR==1){printf("     异地成功率最低:%s %f\n",$1,$2)}' > dd
#kuanghang
awk -F":" 'subs


偶是搞JAVA的,要把SHELL改为JAVA   请高人救命!给解析一下这段