fedora-docs-l10n/fedora-system-administrat/f32/pages/monitoring-and-automation/Viewing_and_Managing_Log_Files — Chinese (Simplified Han script) @ Fedora Weblate: _FILTER_ -_PATH

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	English	Chinese (Simplified Han script)	Actions
	Expression-based filters are indicated by the keyword if at the start of a new line. The then keyword separates the _EXPRESSION_ from the _ACTION_. Optionally, you can employ the else keyword to specify what action is to be performed in case the condition is not met.	新行开头的 if 关键字指示基于表达式的过滤器。then 关键字将 _EXPRESSION_ 与 _ACTION_ 分开。您可以选择使用 else 关键字来指定在不满足条件时要执行的操作。
	With expression-based filters, you can nest the conditions by using a script enclosed in curly braces as in xref:Viewing_and_Managing_Log_Files.adoc#ex-expression-based_filters[Expression-based Filters]. The script allows you to use facility/priority-based filters inside the expression. On the other hand, property-based filters are not recommended here. RainerScript supports regular expressions with specialized functions `re_match()` and `re_extract()`.	使用基于表达式的过滤器，您可以使用用大括号括起来的脚本来嵌套条件，如 xref:Viewing_and_Managing_Log_Files.adoc#ex-expression-based_filters[Expression-based Filters] 中所示。该脚本允许您在表达式中使用 facility/priority-based 过滤器。另一方面，这里不推荐使用 property-based 过滤器。RainerScript 支持具有专用函数 `re_match()` 和 `re_extract()` 的正则表达式。
	Expression-based Filters	基于表达式的过滤器
	The following expression contains two nested conditions. The log files created by a program called prog1 are split into two files based on the presence of the "test" string in the message.	以下表达式包含两个嵌套条件。由名为 prog1 的程序创建的日志文件根据消息中“test”字符串的存在分为两个文件。
	if $programname == 'prog1' then { action(type="omfile" file="/var/log/prog1.log") if $msg contains 'test' then action(type="omfile" file="/var/log/prog1test.log") else action(type="omfile" file="/var/log/prog1notest.log") }	if $programname == 'prog1' then { action(type="omfile" file="/var/log/prog1.log") if $msg contains 'test' then action(type="omfile" file="/var/log/prog1test.log") else action(type="omfile" file="/var/log/prog1notest.log") }
	See xref:Viewing_and_Managing_Log_Files.adoc#brid-Log_Files-Resources-Online[Online Documentation] for more examples of various expression-based filters. RainerScript is the basis for [application]rsyslogpass:attributes[{blank}]'s new configuration format, see xref:Viewing_and_Managing_Log_Files.adoc#sec-using_the_new_configuration_format[Using the New Configuration Format]	参考 xref:Viewing_and_Managing_Log_Files.adoc#brid-Log_Files-Resources-Online[Online Documentation] 以获取更多基于表达式的过滤器的示例。RainerScript 是 [application]rsyslogpass:attributes[{blank}] 的新配置格式的基础，参见 xref:Viewing_and_Managing_Log_Files.adoc#sec-using_the_new_configuration_format[Using the New Configuration Format]。
	Actions	操作
	indexterm:[rsyslog,actions] Actions specify what is to be done with the messages filtered out by an already-defined selector. The following are some of the actions you can define in your rule:	indexterm:[rsyslog,actions] 操作指定要对已定义的选择器过滤掉的消息执行什么操作。以下是您可以在规则中定义的一些操作：
	Saving syslog messages to log files	将 syslog 消息保存到日志文件
	The majority of actions specify to which log file a syslog message is saved. This is done by specifying a file path after your already-defined selector:	大多数操作指定将 syslog 消息保存到哪个日志文件。这是通过在已定义的选择器之后指定文件路径来完成的：
	_FILTER_ _PATH_	_FILTER_ _PATH_
	where _FILTER_ stands for user-specified selector and _PATH_ is a path of a target file.	其中 _FILTER_ 代表用户指定的选择器，_PATH_ 是目标的路径文件。
	For instance, the following rule is comprised of a selector that selects all [application]cron syslog messages and an action that saves them into the `/var/log/cron.log` log file:	例如，以下规则由选择所有 [application]cron syslog 消息的选择器和将它们保存到 `/var/log/cron.log` 日志文件的操作组成：
	cron.* /var/log/cron.log	cron.* /var/log/cron.log
	By default, the log file is synchronized every time a syslog message is generated. Use a dash mark (`-`) as a prefix of the file path you specified to omit syncing:	默认情况下，每次生成 syslog 消息时都会同步日志文件。使用破折号 (`-`) 作为您指定省略同步的文件路径的前缀：
	_FILTER_ -_PATH_
	Note that you might lose information if the system terminates right after a write attempt. However, this setting can improve performance, especially if you run programs that produce very verbose log messages.	请注意，如果系统在写入尝试后立即终止，可能会造成信息丢失。但是，此设置可以提高性能，尤其是在您运行产生非常冗长的日志消息的程序时。
	Your specified file path can be either static or dynamic. Static files are represented by a fixed file path as shown in the example above. Dynamic file paths can differ according to the received message. Dynamic file paths are represented by a template and a question mark (`?`) prefix:	您指定的文件路径可以是 static 或 dynamic 的。静态文件由固定文件路径表示，如上例所示。动态文件路径可以根据收到的消息而有所不同。动态文件路径由模板和问号 (`?`) 前缀表示：
	_FILTER_ ?_DynamicFile_
	where _DynamicFile_ is a name of a predefined template that modifies output paths. You can use the dash prefix (`-`) to disable syncing, also you can use multiple templates separated by a colon (`;`). For more information on templates, see xref:Viewing_and_Managing_Log_Files.adoc#brid-generating-dynamic-fnames[Generating Dynamic File Names].	其中 _DynamicFile_ 是修改输出路径的预定义模板的名称。您可以使用破折号前缀 (`-`) 禁用同步，也可以使用由冒号 (`:`) 分隔的多个模板。有关模板的详细信息，请参照 xref:Viewing_and_Managing_Log_Files.adoc#brid-generating-dynamic-fnames[Generating Dynamic File Names]。
	If the file you specified is an existing [application]terminal or `/dev/console` device, syslog messages are sent to standard output (using special [application]terminal-handling) or your console (using special `/dev/console`-handling) when using the X Window System, respectively.	如果您指定的文件是现有的 [application]terminal 或 `/dev/console` 设备，在使用 X Window 系统时，系统日志消息将分别发送到标准输出（使用特殊的 [application]terminal-handling）或您的控制台（使用特殊的 `/dev/console`-handling) 。
	Sending syslog messages over the network	通过网络发送 syslog 消息
	[application]rsyslog allows you to send and receive syslog messages over the network. This feature allows you to administer syslog messages of multiple hosts on one machine. To forward syslog messages to a remote machine, use the following syntax:	[application]rsyslog 允许您通过网络发送和接收 syslog 消息。此功能允许您在一台机器上管理多个主机的系统日志消息。要将系统日志消息转发到远程计算机，请使用以下语法：
	@([command]#zpass:attributes[{blank}]_NUMBER_pass:attributes[{blank}]#)_HOST_:pass:attributes[{blank}]_PORT_
	The at sign (`@`) indicates that the syslog messages are forwarded to a host using the `UDP` protocol. To use the `TCP` protocol, use two at signs with no space between them (`@@`).	at 符号 (`@`) 表示系统日志消息使用 `UDP` 协议转发到主机。要使用 `TCP` 协议，请使用两个 at 符号，它们之间没有空格 (`@@`)。
	The optional [command]#zpass:attributes[{blank}]_NUMBER_pass:attributes[{blank}]# setting enables [application]zlib compression for syslog messages. The _NUMBER_ attribute specifies the level of compression (from 1 – lowest to 9 – maximum). Compression gain is automatically checked by `rsyslogd`, messages are compressed only if there is any compression gain and messages below 60 bytes are never compressed.	可选的 [command]#zpass:attributes[{blank}]_NUMBER_pass:attributes[{blank}]# 设置为 syslog 消息启用 [application]zlib 压缩。_NUMBER_ 属性指定压缩级别（从最低值1到最大值9）。压缩收益由 `rsyslogd` 自动检查，仅当有任何压缩收益时才会压缩消息，并且永远不会压缩低于 60 字节的消息。
	The _HOST_ attribute specifies the host which receives the selected syslog messages.	_HOST_ 属性指定接收所选系统日志消息的主机。
	The _PORT_ attribute specifies the host machine's port.	_PORT_ 属性指定主机的端口。
	When specifying an `IPv6` address as the host, enclose the address in square brackets (`[`, `]`).	将“IPv6”地址指定为主机时，请将地址括在方括号中(`[`, `]`)。
	Sending syslog Messages over the Network	通过网络发送系统日志消息
	The following are some examples of actions that forward syslog messages over the network (note that all actions are preceded with a selector that selects all messages with any priority). To forward messages to `192.168.0.1` via the `UDP` protocol, type:	以下是通过网络转发 syslog 消息的一些操作示例（请注意，所有操作前面都有一个选择器，该选择器选择具有任何优先级的所有消息）。要通过 `UDP` 协议将消息转发到 `192.168.0.1`，请键入：