---
name: "dspam_clean"
section: "1"
platform: "linux"
package: "dspam"
version: "3.10.1+dfsg-11"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/dspam_clean"
---

# dspam\_clean(1)

perform periodic maintenance of metadata

## NAME

dspam\_clean - perform periodic maintenance of metadata

## SYNOPSIS

**dspam\_clean** \[**--profile** =PROFILE\] \[*-s\[signature\_life\]* \] \[*-p\[probability\_life\]* \] \[*-u\[sl,hcl,shl,ihl\]* \] \[*user1 user2 ... userN* \]

## DESCRIPTION

**dspam\_clean** is used to perform periodic housecleaning on DSPAM's metadata dictionary by deleting old or useless data.

## OPTIONS

- **--profile=***PROFILE*

  Specify a storage profile from dspam.conf. The storage profile selected will be used for all database connectivity. See dspam.conf for more information.

- **-s**

  Performs stale signature purging. If a value is specified, the default value of 14 days will be overridden. Specifying an age of 0 will delete all signatures from the user(s) processed.

- **-p**

  Deletes all tokens from the target user(s) database whose probability is between 0.35 and 0.65 (fairly neutral, useless data). If a value is specified, the default life of 30 days will be overridden. It's a good idea to use this flag once with a life of 0 days for users after a significant amount of corpus training.

- **-u**

  Deletes all unused tokens from a user's dataset. Four different life values are used:

  **sl** Stale tokens which have not been used for a long period of time

  **hcl** Tokens with a total hit count below 5 (which will be assigned a hapaxial value by DSPAM)

  **shl** Tokens witha single spam hit

  **ihl** Tokens with a single innocent hit

  Ages may be overridden by specifying a format string, such as -u30,15,10,10 where each number represents the respective life. Specifying a life of zero will delete all unused tokens in the category.

- **user1 user2 ... userN**

  Specify the username(s) to perform the selected maintenance operations on. If no username is specified, all users are processed.

## EXIT VALUE

- **0**

  Operation was successful.

- **other**

  Operation resulted in an error.

## COPYRIGHT

Copyright © 2002-2011 DSPAM Project\
 All rights reserved.\

For more information, see http://dspam.sourceforge.net.

## SEE ALSO

[**dspam**(1)](/dspam/1.md), [**dspam\_admin**(1)](/dspam_admin/1.md), [**dspam\_crc**(1)](/dspam_crc/1.md), [**dspam\_dump**(1)](/dspam_dump/1.md), [**dspam\_logrotate**(1)](/dspam_logrotate/1.md), [**dspam\_merge**(1)](/dspam_merge/1.md), [**dspam\_stats**(1)](/dspam_stats/1.md), [**dspam\_train**(1)](/dspam_train/1.md)