root@MSI:~/724/2# libra init

# 第一次提交：1.txt，分支 1
echo "content 1" > 1.txt
libra add 1.txt
libra commit -m "commit 1: add 1.txt"
libra branch 1

# 第二次提交：2.txt，分支 2
echo "content 2" > 2.txt
libra add 2.txt
libra commit -m "commit 2: add 2.txt"
libra branch 2

# 第三次提交：3.txt，分支 3
echo "content 3" > 3.txt
libra add 3.txt
libra commit -m "commit 3: add 3.txt"
libra branch 3

# 第四次提交：4.txt，分支 4
echo "content 4" > 4.txt
libra add 4.txt
libra commit -m "commit 4: add 4.txt"
libra branch 4

echo "eee">>3.txt
echo "eee">>4.txt
echo "eee">>5.txt
libra add 3.txt
Initializing empty Libra repository in ./.libra
root@MSI:~/724/2# libra status
On branch master
Changes to be committed:
  use "libra restore --staged <file>..." to unstage
        modified: 3.txt
Changes not staged for commit:
  use "libra add <file>..." to update what will be committed
  use "libra restore <file>..." to discard changes in working directory
        modified: 4.txt
Untracked files:
  use "libra add <file>..." to include in what will be committed
        5.txt
root@MSI:~/724/2# libra reset --hard 1
HEAD is now at 5ae57f8
root@MSI:~/724/2# ls
1.txt  5.txt

#创建仓库的操作同上

root@MSI:~/724/2# libra reset 1
HEAD is now at 594ebc7
root@MSI:~/724/2# ls
1.txt  2.txt  3.txt  4.txt  5.txt
root@MSI:~/724/2# cat 3.txt
content 3
eee
root@MSI:~/724/2# cat 4.txt
content 4
eee
root@MSI:~/724/2# cat 5.txt
eee
root@MSI:~/724/2# libra status
On branch master
Untracked files:
  use "libra add <file>..." to include in what will be committed
        3.txt
        4.txt
        5.txt
        2.txt

#创建仓库的操作同上
root@MSI:~/724/2# libra reset --soft 1
HEAD is now at 2f229d7
root@MSI:~/724/2# libra status
On branch master
Changes to be committed:
  use "libra restore --staged <file>..." to unstage
        new file: 2.txt
        new file: 3.txt
        new file: 4.txt
Changes not staged for commit:
  use "libra add <file>..." to update what will be committed
  use "libra restore <file>..." to discard changes in working directory
        modified: 4.txt
Untracked files:
  use "libra add <file>..." to include in what will be committed
        5.txt
#经检查，文件内容正常