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Full Discussion: How to find the string which is starting with some letters and having numbers from 4th position?
Top Forums UNIX for Beginners Questions & Answers How to find the string which is starting with some letters and having numbers from 4th position? Post 303045384 by looty on Thursday 19th of March 2020 06:33:41 AM
Old 03-19-2020
How to find the string which is starting with some letters and having numbers from 4th position?
How to find the string which is starting with ROS and having numbers from 4th position
For example: I have strings as below
Code:
string1 :ROSE543
string2 :ROS543
string3 :ROS54SQD
string4 :ROSEFLOWER
string5 :FLOWERROSE

here i have to know the string starts with ROS and from 4th position to till the end (n numbers) it having only numbers.
Note: these strings will be passed as a variable and i'm using ksh.

Result should be: ROS543 (because it is starting with ROS and from 4th position to end having only numbers)

Can someone help me to get this result?
Thanks in advance!!!
Last edited by Yoda; 04-03-2020 at 10:37 AM..
 

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LEARN ABOUT FREEBSD

version.4th

VERSION.4TH(8)						    BSD System Manager's Manual 					    VERSION.4TH(8)

NAME

     version.4th -- FreeBSD version string boot module

DESCRIPTION

     The file that goes by the name of version.4th is a set of commands designed to draw the boot loader version at the bottom-right of the
     screen.  The commands of version.4th by themselves are not enough for most uses.  Please refer to the examples below for the most common sit-
     uations, and to loader(8) for additional commands.

     Before using any of the commands provided in version.4th, it must be included through the command:

	   include version.4th

     This line is present in the default /boot/menu.rc file, so it is not needed (and should not be re-issued) in a normal setup.

     The commands provided by it are:

	   print_version	  Prints the contents of the loader_version environment variable right-justified at the column loader_version_x
				  and row loader_version_y.

     The environment variables that effect its behavior are:

	   loader_version
		     Set automatically by loader(8), but you can override it by setting in loader.conf(5).  This should be the version of boot
		     loader used.

	   loader_version_x
		     Sets the desired ending column position of loader_version.  Default is 80.

	   loader_version_y
		     Sets the desired ending row position of loader_version.  Default is 24.

	   loader_color
		     If set to ``NO'' (case-insensitive) or ``0'', causes the version to be printed without color (default is ANSI Cyan).

FILES

     /boot/loader	The loader(8).
     /boot/version.4th	version.4th itself.
     /boot/loader.rc	loader(8) bootstrapping script.

EXAMPLES

     Override loader(8) version in loader.conf(5):

	   loader_version="loader 1.1"

SEE ALSO

     loader.conf(5), color.4th(8), loader(8)

HISTORY

     The version.4th set of commands first appeared in FreeBSD 9.0.

AUTHORS

     The version.4th set of commands was written by Devin Teske <dteske@FreeBSD.org>.

BSD
								  August 6, 2013							       BSD
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