---
name: "bos_prune"
section: "8"
platform: "linux"
package: "openafs-client"
version: "1.8.13.2-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/bos_prune"
---

# bos\_prune(8)

Removes obsolete files from /usr/lib/openafs and /var/log/openafs

## NAME

bos\_prune - Removes obsolete files from /usr/lib/openafs and /var/log/openafs

## SYNOPSIS

**bos prune** **-server** \<*machine name*\> \[**-bak**\] \[**-old**\] \[**-core**\]\
     \[**-all**\] \[**-cell** \<*cell name*\>\] \[**-noauth**\] \[**-localauth**\]\
     \[**-help**\]

**bos p** **-s** \<*machine name*\> \[**-b**\] \[**-o**\] \[**-co**\] \[**-a**\]\
     \[**-ce** \<*cell name*\>\] \[**-n**\] \[**-l**\] \[**-h**\]

## DESCRIPTION

The **bos prune** command removes files from the local disk of the server machine named by the **-server** argument, as specified by one or more of the following flags provided on the command line:

- •

  The **-bak** flag removes all files from the */usr/lib/openafs* directory that have a `".BAK"` extension.

- •

  The **-old** flag removes all files from the */usr/lib/openafs* directory that have a `".OLD"` extension.

- •

  The **-core** flag removes all files from the */var/log/openafs* directory that have a `"core."` prefix.

- •

  The **-all** flag removes all three types of files at once.

(If none of these flags are included, the command appears to succeed, but removes no files at all.)

To display the timestamp on the current, `".BAK"`, and `".OLD"` versions of one or more files, use the **bos getdate** command.

## OPTIONS

- **-server** \<*machine name*\>

  Indicates the server machine from which to remove files. Identify the machine by IP address or its host name (either fully-qualified or abbreviated unambiguously). For details, see [**bos**(8)](/bos/8.md).

- **-bak**

  Removes all files from the */usr/lib/openafs* directory that have a `".BAK"` extension. Do not combine this flag and the **-all** flag.

- **-old**

  Removes all files from the */usr/lib/openafs* directory that have a `".OLD"` extension. Do not combine this flag and the **-all** flag.

- **-core**

  Removes all files from the */var/log/openafs* directory that have a `"core."` prefix. Do not combine this flag and the **-all** flag.

- **-all**

  Combines the effect of the **-bak**, **-old**, and **-core** flags. Do not combine this flag with any of those three.

- **-cell** \<*cell name*\>

  Names the cell in which to run the command. Do not combine this argument with the **-localauth** flag. For more details, see [**bos**(8)](/bos/8.md).

- **-noauth**

  Assigns the unprivileged identity `"anonymous"` to the issuer. Do not combine this flag with the **-localauth** flag. For more details, see [**bos**(8)](/bos/8.md).

- **-localauth**

  Constructs a server ticket using a key from the local */etc/openafs/server/KeyFile* or */etc/openafs/server/KeyFileExt* file. The **bos** command interpreter presents the ticket to the BOS Server during mutual authentication. Do not combine this flag with the **-cell** or **-noauth** options. For more details, see [**bos**(8)](/bos/8.md).

- **-help**

  Prints the online help for this command. All other valid options are ignored.

## EXAMPLES

The following example removes all files from the */usr/lib/openafs* directory on the machine `"fs3.example.com"` that have a `".BAK"` or `".OLD"` extension.

```
   % bos prune -server fs3.example.com -bak -old
```

The following example removes all files from the */usr/lib/openafs* directory on the machine `"db2.example.com"` that have a `".BAK"` or `".OLD"` extension, and all files from the */var/log/openafs* directory that have a `"core."` prefix.

```
   % bos prune -server db2.example.com -all
```

## PRIVILEGE REQUIRED

The issuer must be listed in the */etc/openafs/server/UserList* file on the machine named by the **-server** argument, or must be logged onto a server machine as the local superuser `"root"` if the **-localauth** flag is included.

The **bos prune** command cannot be run against servers which are in restricted mode.

## SEE ALSO

[**KeyFile**(5)](/KeyFile/5.md), [**KeyFileExt**(5)](/KeyFileExt/5.md), [**UserList**(5)](/UserList/5.md), [**bos**(8)](/bos/8.md), [**bos\_getdate**(8)](/bos_getdate/8.md)

## COPYRIGHT

IBM Corporation 2000. \<http://www.ibm.com/\> All Rights Reserved.

This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.