进程状态ps -ef中的e、f含义讲解

吾爱主题阅读：137 2024-04-05 15:06:57 评论：0

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：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 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.