pgrep is a command-line utility initially written for use with the Solaris 7 operating system by Mike Shapiro. It has since been available in illumos and reimplemented for the Linux and BSDs (DragonFly BSD, FreeBSD, NetBSD, and OpenBSD). It searches for all the named processes that can be specified as extended regular expression patterns, and—by default—returns their process ID. Alternatives include pidof (finds process ID given a program name) and ps.
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pgrep为一命令行工具，本为Solaris 7而编写，后又衍出Linux与BSD系操作系统的对应实现。这一命令可搜索出所有名字与所给正则表达式相匹配的进程，而后在默认情况下返回相应进程标识符；若带上-2为参数，则一并返回进程名。除此之外，还可指定搜索的进程组范围（-g）、进程所属用户（-u）、是否最近启动进程（-n）与反转搜索（-v）。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).