linux或mac控制台下输入ef="/office/226150.html">ps -ef | grep 关键字可以查看是否有相应的进程启动信息中包含关键字。如：
ps的意思是process status，即进程状态。在控制台执行man ps命令可以查看ps命令后面的命令选项的含义如下：
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The options are as follows:-A Display information about other users' processes, including those without controlling ter- minals.-a Display information about other users' processes as well as your own. This will skip any processes which do not have a controlling terminal, unless the -x option is also specified.-C Change the way the CPU percentage is calculated by using a ``raw'' CPU calculation that ignores ``resident'' time (this normally has no effect).-c Change the ``command'' column output to just contain the executable name, rather than the full command line.-d Like -A, but excludes session leaders.-E Display the environment as well. This does not reflect changes in the environment after process launch.-e Identical to -A.-f Display the uid, pid, parent pid, recent CPU usage, process start time, controlling tty, elapsed CPU usage, and the associated command. If the -u option is also used, display the user name rather then the numeric uid. When -o or -O is used to add to the display follow- ing -f, the command field is not truncated as severely as it is in other formats.-G Display information about processes which are running with the specified real group IDs.-g Display information about processes with the specified process group leaders.-h Repeat the information header as often as necessary to guarantee one header per page of information.-j Print information associated with the following keywords: user, pid, ppid, pgid, sess, jobc, state, tt, time, and command.-L List the set of keywords available for the -O and -o options.-l Display information associated with the following keywords: uid, pid, ppid, flags, cpu, pri, nice, vsz=SZ, rss, wchan, state=S, paddr=ADDR, tty, time, and command=CMD.-M Print the threads corresponding to each task.-m Sort by memory usage, instead of the combination of controlling terminal and process ID.-O Add the information associated with the space or comma separated list of keywords speci- fied, after the process ID, in the default information display. Keywords may be appended with an equals (`=') sign and a string. This causes the printed header to use the speci- fied string instead of the standard header.-o Display information associated with the space or comma separated list of keywords speci- fied. Multiple keywords may also be given in the form of more than one -o option. Key- words may be appended with an equals (`=') sign and a string. This causes the printed header to use the specified string instead of the standard header. If all keywords have empty header texts, no header line is written.-p Display information about processes which match the specified process IDs.-r Sort by current CPU usage, instead of the combination of controlling terminal and process ID.-S Change the way the process time is calculated by summing all exited children to their par- ent process.-T Display information about processes attached to the device associated with the standard input.-t Display information about processes attached to the specified terminal devices.-U Display the processes belonging to the specified real user IDs.-u Display the processes belonging to the specified usernames.-v Display information associated with the following keywords: pid, state, time, sl, re, pagein, vsz, rss, lim, tsiz, %cpu, %mem, and command. The -v option implies the -m option.-w Use 132 columns to display information, instead of the default which is your window size. If the -w option is specified more than once, ps will use as many columns as necessary without regard for your window size. When output is not to a terminal, an unlimited number of columns are always used.-X When displaying processes matched by other options, skip any processes which do not have a controlling terminal.-x When displaying processes matched by other options, include processes which do not have a controlling terminal. This is the opposite of the -X option. If both -X and -x are speci- fied in the same command, then ps will use the one which was specified last. |
可见
-e和-A的意思是一样的，即显示有关其他用户进程的信息，包括那些没有控制终端的进程。
-f显示用户id，进程id，父进程id，最近CPU使用情况，进程开始时间等等。
ps -ef命令含义
工作中，平时都是通过ps -ef 去进行查看系统上的运行的所有进程，是一个特别常用的命令；这里说下该命令的具体含义：
只执行ps命令，默认是显示当前控制台下属于当前用户的进程；
参数 -e 显示运行在系统上的所有进程
参数 -f 扩展显示输出
UID 启动进程的用户
PID 进程的进程号
PPID 父进程进程号
C cpu使用率
STIME 进程启动时的系统时间
TTY 进程启动时终端设备
TIME 运行进程需要的累积CPU时间
CMD 启动程序名称或命令
更多的ps命令可以通过 man ps 或者 ps --help all 来获取
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原文链接：https://manongwushuang.blog.csdn.net/article/details/83537275
