如何查找日期为某一天的文件

　　#!/bin/sh
　　# The right of usage, distribution and modification is here by granted by the author.
　　# The author deny any responsibilities and liabilities related to the code.
　　#
　　OK=0
　　A=`find $1 -print`
　　if expr $3 == 1 >/dev/null ; then M=Jan ; OK=1 ; fi
　　if expr $3 == 2 >/dev/null ; then M=Feb ; OK=1 ; fi
　　if expr $3 == 3 >/dev/null ; then M=Mar ; OK=1 ; fi
　　if expr $3 == 4 >/dev/null ; then M=Apr ; OK=1 ; fi
　　if expr $3 == 5 >/dev/null ; then M=May ; OK=1 ; fi
　　if expr $3 == 6 >/dev/null ; then M=Jun ; OK=1 ; fi
　　if expr $3 == 7 >/dev/null ; then M=Jul ; OK=1 ; fi
　　if expr $3 == 8 >/dev/null ; then M=Aug ; OK=1 ; fi
　　if expr $3 == 9 >/dev/null ; then M=Sep ; OK=1 ; fi
　　if expr $3 == 10 >/dev/null ; then M=Oct ; OK=1 ; fi
　　if expr $3 == 11 >/dev/null ; then M=Nov ; OK=1 ; fi
　　if expr $3 == 12 >/dev/null ; then M=Dec ; OK=1 ; fi
　　if expr $3 == 1 >/dev/null ; then M=Jan ; OK=1 ; fi
　　if expr $OK == 1 > /dev/null ; then
　　ls -l --full-time $A 2>/dev/null | grep "$M $4" | grep $2 ;
　　else
　　 echo Usage: $0 path Year Month Day;
　　 echo Example: $0 ~ 1998 6 30;
　　fi