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# **fsck**
## 说明
**fsck命令** 被用于检查并且试图修复文件系统中的错误。当文件系统发生错误四化，
## 选项
```markdown
： ，
-A： ，
-N： ，
-P：
-r： ， ，
-R：
-s： ，
-t< 文件系统类型>：指定要检查的文件系统类型
-T： ，
-V：
fsck返回的退出代码是以下条件的总和:
0 No errors
1 Filesystem errors corrected
2 System should be rebooted
4 Filesystem errors left uncorrected
8 Operational error
16 Usage or syntax error
32 Checking canceled by user request
128 Shared-library error
```
## 实例
```bash
# linux不正常关机可能会导致文件损坏，
```
