从一个文本文件中读取要clone的github项目repository地址，按顺序clone到本地当前文件夹 以行为单位，每行一个github项目地址

gistfile1.sh

#!/bin/bash
#clone git repository from a file that list all repository will to be clone.

read -p "Please input your file which contains git repository will be clone:" file
echo "your file is ${file}"
if [ -f ${file} ];then
  while read line
	do
		echo "clone from ${line}"
		git clone ${line}
  done<${file}
else
	echo "your file is not found"
fi