方法一：

1. 找出进程号：

cba001:/proc/21723 # ps -ef|grep named
root     30659     1  0 16:45 ?        00:00:00 /opt/***/***/usr/bin/named
root     30999 19367  0 16:45 pts/0    00:00:00 grep named

[注]: 执行ps -ef以后对应的进程号为30659

2. 查看线程号：

cba001:/proc/21723 # ls -al /proc/30659/task/
total 0
dr-xr-xr-x 10 root vboxusers 0 Jul 26 16:45 .
dr-xr-xr-x  5 root vboxusers 0 Jul 26 16:45 ..
dr-xr-xr-x  4 root vboxusers 0 Jul 26 16:47 30659
dr-xr-xr-x  4 root vboxusers 0 Jul 26 16:47 30660
dr-xr-xr-x  4 root vboxusers 0 Jul 26 16:47 30661
dr-xr-xr-x  4 root vboxusers 0 Jul 26 16:47 30662
dr-xr-xr-x  4 root vboxusers 0 Jul 26 16:47 30663
dr-xr-xr-x  4 root vboxusers 0 Jul 26 16:47 30664
dr-xr-xr-x  4 root vboxusers 0 Jul 26 16:47 30787
dr-xr-xr-x  4 root vboxusers 0 Jul 26 16:47 30788

方法二:

cba001:/proc/21723 # ps -eLf |grep named
root       371 19367   371  0    1 16:47 pts/0    00:00:00 grep named
root     30659     1 30659  0    8 16:45 ?        00:00:00 /opt/ipworks/IPWdns/usr/bin/named
root     30659     1 30660  0    8 16:45 ?        00:00:00 /opt/ipworks/IPWdns/usr/bin/named
root     30659     1 30661  0    8 16:45 ?        00:00:00 /opt/ipworks/IPWdns/usr/bin/named
root     30659     1 30662  0    8 16:45 ?        00:00:00 /opt/ipworks/IPWdns/usr/bin/named
root     30659     1 30663  0    8 16:45 ?        00:00:00 /opt/ipworks/IPWdns/usr/bin/named
root     30659     1 30664  0    8 16:45 ?        00:00:00 /opt/ipworks/IPWdns/usr/bin/named
root     30659     1 30787  0    8 16:45 ?        00:00:00 /opt/ipworks/IPWdns/usr/bin/named
root     30659     1 30788  0    8 16:45 ?        00:00:00 /opt/ipworks/IPWdns/usr/bin/named