9 replies to this topic

[securitybreach]

Quote

Everything is a file under Linux and ls* and friends can help you to dig out more information from the system than you originally thought. These Linux tips may come in handy when you need to find out information quickly without going through /proc or sysfs.
#1: lsscsi

See list SCSI devices (or hosts) and their attributes under Linux operating systems:
$ lsscsi -g
Sample outputs:
[0:0:0:0] disk Adaptec  RAID1-A   V1.0  /dev/sda   /dev/sg0
[0:1:0:0] disk SEAGATE  ST373455SS    0006  - /dev/sg1
[0:1:1:0] disk SEAGATE  ST373455SS    0006  - /dev/sg2
[1:0:0:0] cd/dvd  TEAC DV-28E-R 1.8A  /dev/sr0   /dev/sg3

#2: lsblk

Use this command to list block devices
# lsblk
Sample outputs:
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda   8:0 1  68.3G  0 disk
├─sda1   8:1 1   716M  0 part /boot
├─sda2   8:2 1 8G  0 part [SWAP]
└─sda3   8:3 1  59.6G  0 part /
sr0 11:0 1  1024M  0 rom

To see file system type:
# lsblk -f
Sample outputs:
NAME   FSTYPE LABEL MOUNTPOINT
sda
├─sda1 ext2 /boot
├─sda2 swap [SWAP]
└─sda3 ext4 /
sr0

#3: lsb_release

Use this command to see Linux distribution-specific information, enter:
# lsb_release
# lsb_release -a
Sample outputs:
LSB Version: :core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: CentOS
Description: CentOS release 5.8 (Final)
Release: 5.8
Codename: Final................

http://www.cyberciti...mands-examples/

[ichase]

Great post Josh.  Bookmarked to my Linux Tutorial folder.  

[securitybreach]

ichase, on 19 August 2012 - 11:03 PM, said:

Great post Josh.  Bookmarked to my Linux Tutorial folder.  

[V.T. Eric Layton]

COOL! And useful, too.

[securitybreach]

V.T. Eric Layton, on 19 August 2012 - 11:26 PM, said:

COOL! And useful, too.

Indeed

[LilBambi]

'ls' is such an understated command! Many will never do more than 'ls' and so much more is possible.

[sunrat]

Handy list, including a few I didn't know.
Here's a really useful one I just learned: lspci -k will show which kernel modules are loaded for each piece of hardware.

roger@brain:~$ lspci -k
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
		Subsystem: Giga-byte Technology GA-EP45-DS5/GA-EG45M-DS2H Motherboard
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port (rev 03)
		Kernel driver in use: pcieport
00:1a.0 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4
		Subsystem: Giga-byte Technology GA-EP45-DS5/GA-EG45M-DS2H Motherboard
		Kernel driver in use: uhci_hcd...................
.....................................
01:00.0 VGA compatible controller: NVIDIA Corporation GF114 [GeForce GTX 560 Ti] (rev a1)
		Subsystem: ASUSTeK Computer Inc. Device 83bf
		Kernel driver in use: nvidia
03:00.0 SATA controller: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 02)
		Subsystem: Giga-byte Technology GA-EP45-DS5 Motherboard
		Kernel driver in use: ahci
05:01.0 Multimedia audio controller: VIA Technologies Inc. ICE1712 [Envy24] PCI Multi-Channel I/O Controller (rev 02)
		Subsystem: VIA Technologies Inc. M-Audio Delta Audiophile 2496
		Kernel driver in use: snd_ice1712
05:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)
		Subsystem: Giga-byte Technology GA-EP45-DS5/GA-EG45M-DS2H Motherboard
		Kernel driver in use: firewire_ohci

[LilBambi]

I knew that one! But only because my Jim showed it to me many moons ago now.

[Temmu]

wow. who knew?
very good securitybreach & sunrat.

[securitybreach]

Temmu, on 21 August 2012 - 01:06 AM, said:

wow. who knew?
very good securitybreach & sunrat.

Thanks, I learned a few things too