G1_find.sh

#!/bin/bash
#print the number of lines in a file 
echo "Two arguments are required,one is for path,another is for a filename";
echo ".";
if [ $# = 2 ];then
path=$1 
filename=$2
file=`find $path -name '$2'`
if [ -f "$file" ]; then
nombre_ligne=`wc -l $2` 
echo "File $2 has $nombre_ligne lines!"
else
echo "can't find File!"
fi
else
echo "Two arguments are required,one is for path,another is for a filename"
fi

#find and delete the c and txt files which has not been visited for a week
#find .\(-name '*.c' -o -name '*.txt'\)> -atime +7 -exec rm {} \;
#find the files whose size is bigger than 10000bits in the root directory
find . -size +100000c;
# find the file which owns by olivier and which have permission 755. 
find / -type f -user olivier -perm 755 -print