cat /proc/modules:查询当前系统被加载模块

文件/proc/modules保存了当前系统中被加载模块的相关信息。配合使用cat命令可以查看当前系统加载模块的情况。

例如，下面的命令查看系统当前加载的模块，如下所示。

[root@localhost ~]# [root@localhost ~]# cat /proc/modules ebtable_nat 2009 0 - Live 0xffffffffa05b6000ebtables 18135 1 ebtable_nat, Live 0xffffffffa05ae000ipt_MASQUERADE 2338 3 - Live 0xffffffffa05aa000iptable_nat 5923 1 - Live 0xffffffffa05a5000nf_nat 22676 2 ipt_MASQUERADE,iptable_nat, Live 0xffffffffa059a000xt_CHECKSUM 1303 1 - Live 0xffffffffa0596000iptable_mangle 3349 1 - Live 0xffffffffa0592000bridge 85674 0 - Live 0xffffffffa054d000<span style="white-space:pre"></span>//桥接stp 2218 1 bridge, Live 0xffffffffa0549000llc 5418 2 bridge,stp, Live 0xffffffffa0543000ipt_REJECT 2351 4 - Live 0xffffffffa053f000nf_conntrack_ipv4 9186 6 iptable_nat,nf_nat, Live 0xffffffffa0538000nf_defrag_ipv4 1483 1 nf_conntrack_ipv4, Live 0xffffffffa0534000iptable_filter 2793 1 - Live 0xffffffffa0530000ip_tables 17831 3 iptable_nat,iptable_mangle,iptable_filter, Live 0xffffffffa0527000ip6t_REJECT 4340 2 - Live 0xffffffffa0522000nf_conntrack_ipv6 7985 3 - Live 0xffffffffa051c000nf_defrag_ipv6 26468 1 nf_conntrack_ipv6, Live 0xffffffffa0511000xt_state 1492 6 - Live 0xffffffffa050d000nf_conntrack 79537 6 ipt_MASQUERADE,iptable_nat,nf_nat,nf_conntrack_ipv4,nf_conntrack_ipv6,xt_state, Live 0xffffffffa04ee000ip6table_filter 2889 1 - Live 0xffffffffa04ea000ip6_tables 18732 1 ip6table_filter, Live 0xffffffffa04e1000ipv6 336282 284 bridge,ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6, Live 0xffffffffa047a000fuse 79892 2 - Live 0xffffffffa045e000vhost_net 29168 0 - Live 0xffffffffa044d000macvtap 10903 1 vhost_net, Live 0xffffffffa0446000macvlan 10324 1 macvtap, Live 0xffffffffa043f000tun 17094 2 vhost_net, Live 0xffffffffa0436000kvm_intel 55464 0 - Live 0xffffffffa0422000kvm 345070 1 kvm_intel, Live 0xffffffffa03b3000uinput 8120 0 - Live 0xffffffffa03ae000snd_seq_midi 6423 0 - Live 0xffffffffa03a4000snd_seq_midi_event 7205 1 snd_seq_midi, Live 0xffffffffa039e000microcode 112205 0 - Live 0xffffffffa037e000snd_ens1371 21523 2 - Live 0xffffffffa0373000snd_rawmidi 24633 2 snd_seq_midi,snd_ens1371, Live 0xffffffffa0367000snd_ac97_codec 124967 1 snd_ens1371, Live 0xffffffffa033f000ac97_bus 1452 1 snd_ac97_codec, Live 0xffffffffa033b000snd_seq 60769 2 snd_seq_midi,snd_seq_midi_event, Live 0xffffffffa0324000snd_seq_device 7277 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0xffffffffa031e000snd_pcm 93697 2 snd_ens1371,snd_ac97_codec, Live 0xffffffffa02fc000snd_timer 22747 2 snd_seq,snd_pcm, Live 0xffffffffa02f1000snd 73783 11 snd_ens1371,snd_rawmidi,snd_ac97_codec,snd_seq,snd_seq_device,snd_pcm,snd_timer, Live 0xffffffffa02d4000soundcore 7958 1 snd, Live 0xffffffffa02ce000snd_page_alloc 8856 1 snd_pcm, Live 0xffffffffa02c7000e1000 134895 0 - Live 0xffffffffa029d000vmware_balloon 7199 0 - Live 0xffffffffa0298000sg 29318 0 - Live 0xffffffffa028b000i2c_piix4 11232 0 - Live 0xffffffffa0284000shpchp 29130 0 - Live 0xffffffffa0273000ext4 379559 2 - Live 0xffffffffa0200000jbd2 93252 1 ext4, Live 0xffffffffa01de000mbcache 8193 1 ext4, Live 0xffffffffa01d7000sd_mod 37158 4 - Live 0xffffffffa01c8000crc_t10dif 1209 1 sd_mod, Live 0xffffffffa01c4000sr_mod 15049 0 - Live 0xffffffffa01bc000cdrom 39085 1 sr_mod, Live 0xffffffffa01ad000mptspi 16411 3 - Live 0xffffffffa01a4000mptscsih 36638 1 mptspi, Live 0xffffffffa0196000mptbase 93647 2 mptspi,mptscsih, Live 0xffffffffa0178000scsi_transport_spi 25447 1 mptspi, Live 0xffffffffa016c000<span style="white-space:pre"></span>//SCSI设备pata_acpi 3701 0 - Live 0xffffffffa0168000ata_generic 3837 0 - Live 0xffffffffa0164000ata_piix 24409 0 - Live 0xffffffffa0159000vmwgfx 226420 2 - Live 0xffffffffa0113000ttm 89408 1 vmwgfx, Live 0xffffffffa00f2000drm_kms_helper 127219 1 vmwgfx, Live 0xffffffffa00c2000drm 352359 5 vmwgfx,ttm,drm_kms_helper, Live 0xffffffffa0049000i2c_core 29132 3 i2c_piix4,drm_kms_helper,drm, Live 0xffffffffa003b000dm_mirror 14864 0 - Live 0xffffffffa0033000dm_region_hash 12085 1 dm_mirror, Live 0xffffffffa002c000dm_log 9930 2 dm_mirror,dm_region_hash, Live 0xffffffffa0025000dm_mod 102467 2 dm_mirror,dm_log, Live 0xffffffffa0000000

modinfo命令用来显示内核模块信息。

例如，显示scsi模块文件，命令如下所示

[root@localhost ~]# modinfo scsi_transport_spifilename:       /lib/modules/2.6.32-642.4.2.el6.x86_64/kernel/drivers/scsi/scsi_transport_spi.kolicense:        GPLdescription:    SPI Transport Attributesauthor:         Martin Hickssrcversion:     95AD4A186B004C95F19AEC3depends:        vermagic:       2.6.32-642.4.2.el6.x86_64 SMP mod_unload modversions