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persist-tool(1) The persist-tool manual page persist-tool(1) NAME persist-tool - {{ site.product.short_name }} configuration file SYNOPSIS persist-tool [command] [options] DESCRIPTION This manual page is only an abstract. The persist-tool application is a utility that can be used to dump the con- tent of the persist file, and manipulate its content. [](/assets/images/caution.png) CAUTION: Persist-tool is a special tool for syslog-ng experts. Do use the tool unless you know exactly what you are do- ing. Misconfiguring it will result in irrecoverable damage to the persist file, without any warning. Limitations: * The persist-state functions can be used only with SLP4 or newer persist files. Older persist files are not supported. * Wildcard characters are not supported in file and directory names. THE DUMP COMMAND dump [options] [persist_file] Use the dump command to print the current content of the persist file in JSON format to the console. The dump command has the following options: --help or -? Display a brief help message. For example: ```config persist-tool dump /Users/hofi/Develop/Balabit/syslog-ng/build/install/var/syslog-ng persist ``` A valid output is the following: ```config run_id = { "value": "00 00 00 00 0C 00 00 00 " } host_id = { "value": "00 00 00 00 5F 49 2F 01 " } ``` THE ADD COMMAND add [options] [input_file] Use the add command to add or modify a specified state-entry in the persist file. The state-entry should be in the same format as the dump command dis- plays it. If the given state-entry already exists, it will be updated. Oth- erwise, a new value will be added. If the given persist state is invalid, it will be skipped. To use the add command: use persist-tool dump to print the content of the current persist file, and redirect it to a file. Edit the content of this file. Use persist-tool add with this file to modify the persist. The add command has the following options: --help or -? Display a brief help message. --output-dir=<directory> or -o Required parameter. The directory where the persist file is located at. The name of the persist file stored in this directory must be sys- log-ng.persist. --persist-name=<filename> or -p Optional parameter. The name of the persist file to generate. Default value: syslog-ng.persist. For example: ``` shell /Users/hofi/Develop/Balabit/syslog-ng/build/install/bin/persist-tool add dump_persist -o . ``` A valid output is the following: ```config log_reader_curpos(Application) OK affile_sd_curpos(/var/aaa.txt) OK ``` An invalid output is the following: ```config log_reader_curpos(Application) OK wrong FAILED (error: Invalid entry syntax) affile_sd_curpos(/var/aaa.txt) OK ``` FILES /Users/hofi/Develop/Balabit/syslog-ng/build/install/bin/persist-tool SEE ALSO syslog-ng.conf(5) NOTE: If you experience any problems or need help with syslog-ng OSE, see the syslog-ng OSE Administration Guide[1], or visit the syslog-ng OSE mail- ing list[2]. For news and notifications about syslog-ng OSE, visit the syslog-ng OSE blogs[3]. AUTHOR This manual page was generated from the syslog-ng OSE Administration Guide[1], which was written by several contributors to whom we'd like to extend our sincere thanks. COPYRIGHT NOTES [1] syslog-ng OSE Administration Guide <https://syslog-ng.github.io/admin-guide/README> [2] syslog-ng OSE mailing list <https://lists.balabit.hu/mailman/listinfo/syslog-ng> [3] syslog-ng OSE blogs <https://syslog-ng.com/blog/> 4.10.2 18 December 2025 persist-tool(1)
NAME | SYNOPSIS | DESCRIPTION | THE DUMP COMMAND | THE ADD COMMAND | FILES | SEE ALSO | AUTHOR | COPYRIGHT | NOTES
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