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Full Discussion: Extracting a string matching a pattern from a line
Top Forums Shell Programming and Scripting Extracting a string matching a pattern from a line Post 302420429 by pseudocoder on Tuesday 11th of May 2010 02:45:09 PM
Old 05-11-2010
Quote:
Originally Posted by jharish
I am trying to extract the complete word that contains 4 digits.
Code:
[^ ]*[0-9][0-9][0-9][0-9][^ ]*

should be the proper regex.

Code:
$ cat sedinput
1) Adaptec SCSI RAID 5445
2) Adaptec SCSI 5445S RAID
3) ICP ICP5085BL SATA RAID
$ grep -o "[^ ]*[0-9][0-9][0-9][0-9][^ ]*" sedinput
5445
5445S
ICP5085BL
$

or
Code:
$ echo "1) Adaptec SCSI RAID 5445" | grep -o "[^ ]*[0-9][0-9][0-9][0-9][^ ]*"
5445
$ echo "2) Adaptec SCSI 5445S RAID" | grep -o "[^ ]*[0-9][0-9][0-9][0-9][^ ]*"
5445S
$ echo "3) ICP ICP5085BL SATA RAID" | grep -o "[^ ]*[0-9][0-9][0-9][0-9][^ ]*"
ICP5085BL
$

Let me know if you by all means want to do it with sed and if you fail building appropriate sed command with the mentioned regex.
This User Gave Thanks to pseudocoder For This Post:
jharish
 

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LEARN ABOUT DEBIAN

ahb

AHB(4)							   BSD Kernel Interfaces Manual 						    AHB(4)

NAME

     ahb -- Adaptec EISA SCSI host adapter driver

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device scbus
	   device ahb

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   ahb_load="YES"

DESCRIPTION

     This driver provides access to the SCSI bus connected to an Adaptec AHA-174X host adapters in ``enhanced'' mode.  Tagged queueing and syn-
     chronous SCSI transfers are supported.

HARDWARE

     The ahb driver supports the following SCSI host adapters:

     o	 Adaptec AHA-1740
     o	 Adaptec AHA-1742
     o	 Adaptec AHA-1740A
     o	 Adaptec AHA-1742A

CAVEATS

     The Adaptec 174X is very sensitive to SCSI bus termination and cable length.  It may also have difficulties operating with some modern
     devices that, due to their speed, expose timing problems in the controller.  There are no known mechanisms for working around device incom-
     patibilities of this nature.

SEE ALSO

     aha(4), ahc(4), aic(4), cd(4), da(4), sa(4), scsi(4)

AUTHORS

     The ahb driver was written by Justin T. Gibbs.

BSD
								   July 4, 2004 							       BSD
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