它还安排一个管道，把主服务的标准输出作为日志进程的标准输入。
It also arranges for a pipe to carry the standard output from the main service to the log process's standard input.
syslog 服务是在后台运行的守护进程，可接受日志输入并将其写入到一个或多个单独文件。
The syslog service is a daemon that runs the background and accepts log entries and writes them to one or more individual files.
在UNIX和与UNIX相似的系统上，日志文件仅仅是文本文件，相关联的服务器进程或系统日志记录守护进程在其中写入消息。
On UNIX and UNIX-like systems, log files are simply text files that are continually appended, either by the server processes that they are associated with or by system-logging daemons.
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