Linux下查看某个进程创建了多少线程

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