# chgrp
## Command Function
This command is used to change the file group.
## Syntax
chgrp \[_group_\] \[_pathname_\]
## Parameters
**Table 1** Parameter description
Parameter
Description
Value Range
group
Specifies the target file group.
[0, 0xFFFFFFFF]
pathname
Specifies the file path.
An existing file
## Usage
- Specify **group** to change the file group.
- For the FAT file system, this command cannot be used to change user group IDs.
## Example
Run **chgrp 100 testfile**.
## Output
Changing the group ID of the **testfile** file in the **dev/** directory to **100**
```
OHOS:/dev$ ll testfile
-rw-r--r-- 0 0 0 0 1970-01-01 00:00 testfile
OHOS:/dev$ chgrp 100 testfile
OHOS:/dev$ ll testfile
-rw-r--r-- 0 0 100 0 1970-01-01 00:00 testfile
OHOS:/dev$
```