Script to count the memory usage size of a process

#!/bin/bashmemlist= ' PS auxf--width=1000 |grep $1|grep-v grep|awk ' {print $6} '; totalmem=0for mem in $memlist; Do let "totalmem= $totalMem +mem" Doneecho $totalMem

$ $ represents the process name, which is the parameter given by the script. It is also specified in the item on the Zabbix.

The script above can be simplified:

#!/bin/bashmem= ' PS auxf--width=1000 |grep $1|grep-v grep|awk ' {sum+=$6}end{print sum} ' echo $mem

PS aux command detailed

[[email protected] scripts]# ps auxf --width=1000|moreuser         PID %CPU %MEM    VSZ   RSS TTY       STAT START   TIME COMMANDroot           2  0.0  0.0      0      0 ?        s    jun29    0:00 [kthreadd]root          3   0.0  0.0      0     0 ?         s    jun29   0:00  \_  [migration/0]root          4  0.0   0.0   &Nbsp;  0     0 ?        s     Jun29   0:00  \_ [ksoftirqd/0]root           5  0.0  0.0      0      0 ?        S     Jun29   0:00  \_ [stopper/0]root           6  0.0  0.0      0      0 ?        S    Jun29    0:00  \_ [watchdog/0]root          7   0.0  0.0      0     0 ?         s    jun29   0:31  \_ [events/0]root           8  0.0  0.0       0     0 ?        S     Jun29   0:00  \_ [events/0]root           9  0.0  0.0      0      0 ?        S    Jun29    0:00  \_ [events_long/0]root         10   0.0  0.0      0     0 ?         S    Jun29   0:00   \_ [events_power_ef]root         11  0.0  0.0       0     0 ?        s     Jun29   0:00  \_ [cgroup]root          12  0.0  0.0      0      0 ?        s    jun29    0:00  \_ [khelper]root          13  0.0  0.0      0     0 ?         S    Jun29   0:00   \_ [netns]root         14  0.0   0.0      0     0 ?        s     Jun29   0:00  \_ [async/mgr]root          15  0.0  0.0      0      0 ?        S    Jun29    0:00  \_ [pm]root         16  0.0   0.0      0     0 ?         s    jun29   0:00  \_ [sync_supers] root         17  0.0  0.0       0     0 ?        s     jun29   0:00  \_ [bdi-default]root          18  0.0  0.0      0      0 ?        S    Jun29    0:00  \_ [kintegrityd/0]root         19   0.0  0.0      0     0 ?         s    jun29   0:13  \_  [kblockd/0]root         20  0.0  0.0       0     0 ?         S    Jun29   0:00  \_ [kacpid]root          21  0.0  0.0      0     0  ?        s    jun29   0:00   \_ [kacpi_notify]root         22  0.0   0.0      0     0 ?         s    jun29   0:00  \_ [kacpi_ hotplug]root         23  0.0  0.0       0     0 ?         S    Jun29   0:00  \_ [ata_aux]root          24  0.0  0.0      0      0 ?         S    Jun29   0:00   \_ [ata_sff/0]root         25  0.0   0.0      0     0 ?         s    jun29   0:00  \_ [ksuspend_usbd ]

USER: The owner of the process;
PID: The ID of the process;
PPID: Parent process;
%cpu: Percentage of CPU consumed by the process;
%MEM: The percentage of memory occupied;
NI: The nice value of the process, large value, indicating less CPU time;
VSZ: The amount of virtual memory used by the process (KB);
RSS: The amount of fixed memory (KB) that the process occupies (the number of pages residing in);
TTY: The process is run on that end (the terminal position of the landing), and if it is not relevant to the end, it is displayed (? ）。 If the pts/0, it means that the network connects the host
Wchan: If the previous process is in progress, if-that means it is in progress;
Start: The start time of the process being touched;
Time: The process actually uses the CPU to run the line;
Command: The name and parameters of the commands;

Stat Common Status:

D a dormant state (usually IO process) that cannot be interrupted;
R is running can be in the queue can be too line;
S is in a dormant state;
T stop or be traced;
W enters memory swap (invalid starting from kernel 2.6);
X dead process (basic rarely seen);
Z Zombie process;
< high-priority processes
N Low-priority processes
L Some pages are locked into memory;
Leader of the S-process (under it there are sub-processes);
L multi-process (using Clone_thread, similar to NPTL pthreads);
+ Process Group located in the background;

Reference: http://blog.csdn.net/hanner_cheung/article/details/6081440

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Script to count the memory usage size of a process