#!/bin/sh
 
function usage() {
    echo "usage: <source dir>"
}
 
if [ $ARGC != 1 ] || [ -d $1 ];then
    usage
    exit
fi
 
DIR=$1
 
for i in `find $DIR -type f -name '*.log'`;do rm -f $i;done
for i in `find $DIR -type f -name '*.o'`;do rm -f $i;done
for i in `find $DIR -type f -name '*.a'`;do rm -f $i;done
for i in `find $DIR -type f -perm +100`;do rm $i;done