centos7.2 get pid by process name with python3.6
#-*- encoding:UTF-8 -*-
import os
import sys
import string
import psutil
import re
def get_pid(name):
process_list = psutil.pids()
pid = 0
for i in range(0,len(process_list)):
p = psutil.Process(process_list[i])
if len(p.cmdline())>=2:
process_info = str(p.cmdline()[1])
result = process_info.find(name)
if result != -1:
pid = process_list[i]
break
print(pid)
return pid
def main(argv):
name = argv[1]
#print(name)
get_pid(name)
if __name__ == "__main__":
main(sys.argv)
关于：psutil 5.2.2使用说明参见：
https://pypi.python.org/pypi/psutil/5.2.2
Example usages
cpu
>>> import psutil >>> psutil.cpu_times() scputimes(user=3961.46, nice169.729, system2150.659, idle16900.540, iowait629.59, irq0.0, softirq19.42, stealguest=0,112)">0.0) >>> >>> for x in range(3): ... psutil.cpu_percent(interval1) ... 4.0 5.9 3.8 1, percpu=True) ... [4.0, 6.9,112)">3.7,112)">9.2] [7.0,112)">8.5,112)">2.4,112)">2.1] [1.2,112)">9.0,112)">9.9,112)">7.2] .cpu_times_percent(intervalFalse) ... scputimes(user1.5,112)">0.5,112)">96.5, guest_nice0.0) scputimes(user1.0,112)">99.0,112)">2.0,112)">98.0,102)">.cpu_count() 4 .cpu_count(logicalFalse) 2 .cpu_stats() scpustats(ctx_switches20455687, interrupts6598984, soft_interrupts2134212, syscalls0) .cpu_freq() scpufreq(current931.42925, min800.0,32)">max3500.0) >>>
Memory
.virtual_memory() svmem(total10367352832, available6472179712, percent37.6, used8186245120, free2181107712, active4748992512, inactive2758115328, buffers790724608, cached3500347392, shared787554304) .swap_memory() sswap(total2097147904,112)">296128512,112)">1801019392,112)">14.1, sin304193536, sout677842944) >>>
Disks
.disk_partitions() [sdiskpart(device='/dev/sda1', mountpoint'/', fstype'ext4', opts'rw,nosuid'), sdiskpart(device'/dev/sda2',160)">'/home',160)">'ext,opts='rw')] .disk_usage('/') sdiskusage(total21378641920,112)">4809781248,112)">15482871808,112)">22.5) .disk_io_counters(perdiskFalse) sdiskio(read_count719566, write_count1082197, read_bytes18626220032, write_bytes24081764352, read_time5023392, write_time63199568, read_merged_count619166, write_merged_count812396, busy_time4523412) >>>
Network
.net_io_counters(pernicTrue) {'eth0': netio(bytes_sent485291293, bytes_recv6004858642, packets_sent3251564, packets_recv4787798, errinerroutdropindropout0), 'lo': netio(bytes_sent2838627,112)">30567,112)">0)} .net_connections() [pconn(fd115, family=<AddressFamily.AF_INET: 2>,32)">type=<SocketType.SOCK_STREAM: 1laddr=('10.0.0.1', 48776), raddr'93.186.135.91',112)">80), status'ESTABLISHED', pid1254), pconn(fd117,112)">43761),160)">'72.14.234.100',160)">'CLOSING',112)">2987),102)">=-60759),160)">'72.14.234.104',32)">None),112)">51314),160)">'72.14.234.83',112)">443),160)">'SYN_SENT',32)">None) ...] .net_if_addrs() {'lo': [snic(familyaddress'127.0.0.1', netmask'255.0.0.0', broadcastptpsnic(family.AF_INET6: 10'::1',160)">'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff',32)">None,102)">.AF_LINK: 17'00:00:00:00:00:00',32)">None)],160)">'wlan0': [snic(family'192.168.1.3',160)">'255.255.255.0',160)">'192.168.1.255', snic(family'fe80::c685:8ff:fe45:641%wlan0',160)">'ffff:ffff:ffff:ffff::',160)">'c4:85:08:45:06:41',160)">'ff:ff:ff:ff:ff:ff',32)">None)]} .net_if_stats() {'eth0': snicstats(isupTrue, duplex=<NicDuplex.NIC_DUPLEX_FULL: speed100, mtu1500),160)">'lo': snicstats(isup.NIC_DUPLEX_UNKNOWN: 065536)} >>>
Sensors
.sensors_temperatures() {'acpitz': [shwtemp(label'', current47.0, high103.0, critical103.0)],160)">'asus': [shwtemp(label'coretemp': [shwtemp(label'Physical id 0',112)">52.0,112)">100.0,112)">100.0), shwtemp(label'Core 0',112)">45.0,160)">'Core 1',160)">'Core 2',160)">'Core 3',112)">100.0)]} .sensors_fans() {'asus': [sfan(label'cpu_fan',112)">3200)]} .sensors_battery() sbattery(percent93, secsleft16628, power_plugged>>>
Other system info
.users() [user(name'giampaolo', terminal'pts/2', host'localhost', started1340737536.0), user(name'pts/3',112)">1340737792.0)] .boot_time() 1365519115.0 >>>
Process management
.pids() [2,112)">3,112)">4,112)">5,112)">6,112)">7,112)">46,112)">48,112)">50,112)">51,112)">178,112)">182,112)">222,112)">223,112)">224,112)">268,112)">1215,112)">1216,112)">1220,112)">1221,112)">1243,112)">1244, 1301,112)">1601,112)">2237,112)">2355,112)">2637,112)">2774,112)">3932,112)">4176,112)">4177,112)">4185,112)">4187,112)">4189,112)">4225,112)">4243,112)">4245,112)">4263,112)">4282,112)">4306,112)">4311,112)">4312,112)">4313,112)">4314,112)">4337,112)">4339,112)">4357,112)">4358,112)">4363,112)">4383,112)">4395,112)">4408,112)">4433,112)">4443,112)">4445,112)">4446,112)">5167,112)">5234,112)">5235,112)">5252,112)">5318,112)">5424,112)">5644,112)">6987,112)">7054,112)">7055,112)">7071] >>> p = psutil.Process(7055) >>> p.name() 'python' .exe() '/usr/bin/python' .cwd() '/home/giampaolo' .cmdline() ['/usr/bin/python', 'main.py'] .pid 7055 .ppid() 7054 .parent() <psutil.Process(pidname'bash') at 140008329539408> .children() [8031,160)">'python') at 140208324519778044,112)">19229444921932>] .status() 'running' .username() 'giampaolo' .create_time() 1267551141.5019531 .terminal() '/dev/pts/0' .uids() puids(real1000, effectivesaved1000) .gids() pgids(real.cpu_times() pcputimes(user1.02,112)">0.31, children_user0.32, children_system0.1) 1.0) 12.1 .cpu_affinity() [3] .cpu_affinity([1]) # set .cpu_num() 1 .memory_info() pmem(RSS10915840, vms67608576,112)">3313664, text2310144, libdata7262208, dirty.memory_full_info() # "real" USS memory usage (Linux,OSX,Win only) pfullmem(RSS10199040,112)">52133888,112)">3887104,112)">2867200,112)">5967872, uss6545408, pss6872064, swap.memory_percent() 0.7823 .memory_maps() [pmmap_grouped(path'/lib/x8664-linux-gnu/libutil-2.15.so', RSS32768, size2125824, shared_cleanshared_dirtyprivate_clean20480, private_dirty12288, referencedanonymouspmmap_grouped(path'/lib/x8664-linux-gnu/libc-2.15.so',112)">3821568,112)">3842048,112)">3575808,160)">'/lib/x8664-linux-gnu/libcrypto.so.0.1',112)">34124,112)">2134016,112)">15360,112)">24576,112)">8192,160)">'[heap]', RSS139264,160)">'[stack]',112)">2465792,112)">2494464,112)">2277376,102)">.io_counters() pio(read_count478001,112)">59371,112)">700416,112)">69632, read_chars456232, write_chars517543) .open_files() [popenfile(path'/home/giampaolo/svn/psutil/setup.py', fdpositionmode'r', flags32768), popenfile(path'/var/log/monitd',112)">235542,160)">'a',112)">33793)] .connections() [pconn(fd'ESTABLISHED'),160)">'CLOSING'),112)">119,112)">123,160)">'SYN_SENT')] .num_threads() .num_fds() 8 .threads() [pthread(iduser_time22.5, system_time9.2891), pthread(0.0),112)">5236,112)">5237,112)">0.0707,112)">1.1)] .num_ctx_switches() pctxsw(voluntary78, involuntary19) .nice() 0 .nice(10) .ionice(psutil.IOPRIO_CLASS_IDLE) # IO priority (Win and Linux only) .ionice() pionice(ioclass=<IOPriority.IOPRIO_CLASS_IDLE: 3value.rlimit(psutil.RLIMIT_NOFILE, (5)) # set resource limits (Linux only) .RLIMIT_NOFILE) (5) .environ() {'LC_PAPER': 'it_IT.UTF-8',160)">'SHELL': '/bin/bash',160)">'GREP_OPTIONS': '--color=auto', 'XDG_CONFIG_DIRS': '/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg',160)">'COLORTERM': 'gnome-terminal',102)">...} .as_dict() {'status': 'running',160)">'num_ctx_switches': pctxsw(voluntary63,112)">1),160)">'pid': 5457, .is_running() True .suspend() .resume() .terminate() .wait(timeout3) .test() USER PID %cpu %MEM VSZ RSS TTY START TIME COMMAND root 1 0.0 0.0 24584 2240 Jun17 00:00 init root 2 0.0 0 0 Jun17 00 kthreadd root 3 05 ksoftirqd/... giampaolo 31475 20760 3024 /dev/pts0 Jun19 00 python2.4 giampaolo 31721 2.2 773060 181896 04 10:30 chrome root 31763 0 05 00 kworker0:>>>
Further process APIs
for p in psutil.process_iter(): ... print(p) ... psutil'init') psutil'kthreadd') psutil'ksoftirqd/0') ... def on_terminate(proc): print("process {} terminated".format(proc)) >>> # waits for multiple processes to terminate >>> gone, alive .wait_procs(procs_list, timeoutcallback=on_terminate) >>>
Windows services
>>> list(psutil.win_service_iter()) [<WindowsService(name'AeLookupSvc', display_name'Application Experience') at 38850096'ALG',160)">'Application Layer Gateway Service') at 38850128'APNMCP',160)">'Ask Update Service') at 38850160'AppIDSvc',160)">'Application Identity') at 38850192>>> s .win_service_get('alg') >>> s'binpath': 'C:\\WindowsSystem32alg.exe',160)">'description': 'Provides support for 3rd party protocol plug-ins for Internet Connection Sharing',160)">'display_name': 'Application Layer Gateway Service',160)">'name': 'alg',160)">'pid': 'start_type': 'manual',160)">'stopped',160)">'username': 'NT AUTHORITYLocalService'}
