C高级 day2

mkdir ~/dir/dir1 ~/dir/dir2 -p
  2 cp ./*.c ~/dir/dir1
  3 cp ./*.sh ~/dir/dir2
  4 cd ~/dir/dir2/
  5 tar -cJf dir2.tar.xz 1.sh hello.sh
  6 mv ./dir2.tar.xz ~/dir/dir1/
  7 cd ~/dir/dir1                                                                                                                   
  8 tar -xvf dir2.tar.xz
  9 tree ~/dir