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+ prtstat
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+ ===
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+
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+ 显示进程信息
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+
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+ ## 概要
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+
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+ ``` shell
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+ prtstat [-r| --raw] pid
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+ prtstat -V| --version
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+ ```
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+
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+ ## 主要用途
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+
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+ - prtstat打印指定进程的统计信息。这个信息来自/proc/PID/stat文件。
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+
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+
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+ ## 参数
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+
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+ -r:以原始(raw)格式打印进程的统计信息
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+
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+ -V: 打印prtstat的版本信息
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+
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+ ## 例子
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+
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+ ``` shell
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+ [root@localhost command]# ps -ef|grep nginx
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+ root 4022 250867 0 16:39 pts/1 00:00:00 grep --color=auto nginx
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+ root 224312 1 0 4月26 ? 00:00:00 nginx: master process /var/openresty/nginx/sbin/nginx
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+ nobody 224313 224312 0 4月26 ? 00:00:00 nginx: worker process
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+ [root@localhost command]# prtstat -r 224312
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+ pid: 224312 comm: nginx
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+ state: S ppid: 1
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+ pgrp: 224312 session: 224312
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+ tty_nr: 0 tpgid: -1
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+ flags: 402040 minflt: 110
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+ cminflt: 0 majflt: 0
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+ cmajflt: 0 utime: 0
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+ stime: 0 cutime: 0
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+ cstime: 0 priority: 20
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+ nice: 0 num_threads: 1
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+ itrealvalue: 0 starttime: 6271470
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+ vsize: 56369152 rss: 413
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+ rsslim: 18446744073709551615 startcode: 4194304
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+ endcode: 5772276 startstack: 140722783765648
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+ kstkesp: 7FFC9389BFB8 kstkeip: 7F25CD42F6C6
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+ wchan: 18446744071885754297 nswap: 0
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+ cnswap: 18446744071885754297 exit_signal: 17
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+ processor: 2 rt_priority: 0
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+ policy: 0 delayaccr_blkio_ticks: 0
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+ guest_time: 0 cguest_time: 0
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+ ```
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+
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+ ### 注意
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+
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+ 1 . ` prtstat ` 命令来自于psmisc包。此包来自于base源仓库。
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+ 2 . psmisc.x86_64 : 用于管理系统上进程的实用程序
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