使用 uname -r

[lwg@RHEL4 ~]$ uname -r
2.6.9-34.0.1.EL
[lwg@RHEL4 ~]$ cd /lib/modules/` uname -r`/kernel/net
[lwg@RHEL4 net]$ pwd
/lib/modules/2.6.9-34.0.1.EL/kernel/net
[lwg@RHEL4 net]$ cd ~
[lwg@RHEL4 ~]$ cd /lib/modules/2.6.9-34.0.1.EL/kernel/net/
[lwg@RHEL4 net]$ pwd
/lib/modules/2.6.9-34.0.1.EL/kernel/net
[lwg@RHEL4 net]$