写一个脚本 从键盘让用户输入几个文件，脚本能够将此几个文件归档压缩成一个文件

#!/bin/bash
#
read -p "Three files:" file1 file2 file3
read -p "Destination:" DEST -->指定压缩存放目录及文件名称
read -p "Compress[gzip|bzip2|xz]:" COMP  -->输入压缩的格式
case $COMP in
gzip)
tar -zcf ${DEST}.tar.gz $file1 $file2 $file3
;;
bzip2)
tar -jcf ${DEST}.tar.bz2 $file1 $file2 $file3
;;
xz)
tar -cf ${DEST}.tar $file1 $file2 $file3
xz  ${DEST}.tar
;;
*)
echo "Unknow."
exit 9
;;
esac

[root@localhost test]# pwd
/mnt/test
[root@localhost test]#chmod +x mytar.sh
[root@localhost test]# ./mytar2.sh
Input Three files:test1.txt test2.txt test3.txt
Destination:/mnt/test/test
Compress[gzip|bzip2|xz]:gzip
[root@localhost test]# ls
mytar.sh   test2.txt  test.tar.gz
test1.txt  test3.txt