Lspci | Grep-i FileName

$ Lspci |grep VGA

00:02.0 VGA compatible Controller:intel Corporation 4th Gen Core Processor Integrated Graphics Controller (Rev 06)

function : The command function: The output of the LSPCI as input, from which to find the line containing the VGA

Add:

PCI is the abbreviation for peripheral Component Interconnect (peripheral interconnect) and is commonly used as a peripheral bus on desktops and larger computers. The PCI architecture is designed as a replacement for the ISA standard, with three main goals: better performance when transferring data between computers and peripherals, as platform-agnostic as possible, and simplifying the task of adding and removing peripherals to the system.

LSPCI Command:

Lspci is a tool used to display all PCI bus devices in the system or all devices connected to the bus.

Option-N: Displays PCI vendor and device code numerically;-T: Displays hierarchical relationships of PCI devices in a tree structure, including all buses, bridges, devices, and joins between them;-B: A bus-centric view;-D: Displays information only for a given vendor and device;-S: Displays only the specified bus, The function block information on the device and device on the slot;-I: Specifies the PCI numbered list file instead of the default file;-M: Displays the PCI device information in a machine-readable manner.

From: Http://man.linuxde.net/lspci option-N: Displays the PCI vendor and device code numerically;-T: a tree-like hierarchy of PCI devices, including all buses, bridges, devices, and joins between them;-B: Bus-centric view ;-D: Displays information only for a given vendor and device;-S: Displays only the function block information on the specified bus, the device on the slot, and the device;-I: Specifies the PCI numbered list file instead of the default file;-M: Displays the PCI device information in a machine-readable manner.

From: Http://man.linuxde.net/lspci option-N: Displays the PCI vendor and device code numerically;-T: a tree-like hierarchy of PCI devices, including all buses, bridges, devices, and joins between them;-B: Bus-centric view ;-D: Displays information only for a given vendor and device;-S: Displays only the function block information on the specified bus, the device on the slot, and the device;-I: Specifies the PCI numbered list file instead of the default file;-M: Displays the PCI device information in a machine-readable manner.

From: http://man.linuxde.net/lspci-n: Digital display of PCI vendor and device code;-T: Displays hierarchical relationships of PCI devices in a tree structure, including all buses, bridges, devices, and joins between them;-B: A bus-centric view; D: Display only information for a given manufacturer and device;-S: Displays only the function block information on the specified bus, the device on the slot, and the device;-I: Specifies the PCI numbered list file instead of the default file;-M: Displays the PCI device information in a machine-readable manner.

From: http://man.linuxde.net/lspci-n: Digital display of PCI vendor and device code;-T: Displays hierarchical relationships of PCI devices in a tree structure, including all buses, bridges, devices, and joins between them;-B: A bus-centric view; D: Display only information for a given manufacturer and device;-S: Displays only the function block information on the specified bus, the device on the slot, and the device;-I: Specifies the PCI numbered list file instead of the default file;-M: Displays the PCI device information in a machine-readable manner.

From: http://man.linuxde.net/lspci-n: Digital display of PCI vendor and device code;-T: Displays hierarchical relationships of PCI devices in a tree structure, including all buses, bridges, devices, and joins between them;-B: A bus-centric view; D: Display only information for a given manufacturer and device;-S: Displays only the function block information on the specified bus, the device on the slot, and the device;-I: Specifies the PCI numbered list file instead of the default file;-M: Displays the PCI device information in a machine-readable manner.

From: Http://man.linuxde.net/lspciOptions

Example:

1. Do not add any options, you can display the current hardware equipment;

2. View general Details: lspci-v

3. View NIC Details: Lspci-s 03:02.0-vv//-s is followed by the bus, slot, and correlation function functions of each device (-VV is two v)

4. LSPCI |grep Ethernet View NIC model

grep command:

The grep command in a Linux system is a powerful text Search tool that uses regular expressions to search for text and print matching lines . The grep full name is global Regular expression Print, which represents the globally regular expression version, and its use rights are for all users.

Format
grep [Options]

Main parameters
[Options] Main parameters:
-C: Outputs only the count of matching rows.
-I: Case insensitive (only for single-character).
-H: The file name is not displayed when querying multiple files.
-L: only file names that contain matching characters are output when querying multiple files .
-N: Displays matching lines and line numbers.
-S: does not display error messages that do not exist or have no matching text.
-V: Displays all lines that do not contain matching text.

Pattern Regular Expression Main parameters:
\: Ignores the original meaning of special characters in regular expressions.
^: matches the start line of the regular expression.
$: Matches the end line of the regular expression.
\<: Starts from the line that matches the regular expression.
\>: End of line to match regular expression.
[]: A single character, such as [a], a meets the requirements.
[-]: range, such as [A-z], i.e. A, B, C to Z all meet the requirements.
。 : all the individual characters.
*: There are characters, the length can be 0.

The grep command uses a simple instance
$ grep ' test ' d*
Displays all rows that contain test in a file that begins with D.
$ grep ' test ' AA bb cc
Displays the line that matches test in the aa,bb,cc file.
$ grep ' [a-z]\{5\} ' AA
Displays all rows that contain a string of at least 5 consecutive lowercase characters for each string.
$ grep ' w\ (es\) T.*\1′aa
If West is matched, es is stored in memory, labeled 1, and then searched for any character (. *) followed by another ES (\1), which is found to display the row. If you use Egrep or GREP-E, you do not have "\" number to escape, directly written as ' W (es) t.*\1′ on it.

Here are some interesting command-line arguments:
Grep-i pattern Files: Search by case-insensitive. The default case is case-sensitive,
Grep-l pattern Files: Lists only the matching file names,
Grep-l pattern Files: Lists mismatched file names,
Grep-w pattern files: matches only the entire word, not part of the string (such as matching ' magic ', not ' magical '),
Grep-c number pattern files: matching contexts display [number] lines, respectively,
grep pattern1 | PATTERN2 files: Displays rows that match pattern1 or pattern2.
grep pattern1 Files | grep pattern2: Displays rows that match both PATTERN1 and pattern2.

Grep-n pattern files to display line number information

Grep-c pattern files to find total rows

Reference documents:

Http://www.cnblogs.com/end/archive/2012/02/21/2360965.html (grep)