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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 303045556 by looty on Tuesday 31st of March 2020 04:46:59 PM
Old 03-31-2020
Thanks for the answer :-)



I tried the below code and got error.
CODE :

a=sss2345
set -x
if [[ ( $a =~ sss[0-9]*$ ) ]]; then
echo "4th position is num"
else
echo "4th position is not num"
fi




ERROR : Syntax error at line 3 : `=~' is not expected.



ERROR:
Syntax error at line 3 : `=~' is not expected.
 

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

NAME
brand.4th -- FreeBSD ASCII art boot module DESCRIPTION
The file that goes by the name of brand.4th is a set of commands designed to draw the ASCII art BSD brand above the boot loader menu. The commands of brand.4th by themselves are not enough for most uses. Please refer to the examples below for the most common situations, and to loader(8) for additional commands. Before using any of the commands provided in brand.4th, it must be included through the command: include brand.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: draw-brand Draws the BSD brand. The brand that is drawn is configured by setting the loader_brand variable in loader.conf(5) to one of ``fbsd'' (the default) or ``none''. The position of the logo can be configured by setting the loader_brand_x and loader_brand_y variables in loader.conf(5). The default values are 2 (x) and 1 (y). The environment variables that effect its behavior are: loader_brand Selects the desired brand in the beastie boot menu. Possible values are: ``fbsd'' (default) or ``none''. loader_brand_x Sets the desired column position of the brand. Default is 2. loader_brand_y Sets the desired row position of the brand. Default is 1. FILES
/boot/loader The loader(8). /boot/brand.4th brand.4th itself. /boot/loader.rc loader(8) bootstrapping script. EXAMPLES
Set FreeBSD brand in loader.conf(5): loader_brand="fbsd" SEE ALSO
loader.conf(5), loader(8) HISTORY
The brand.4th set of commands first appeared in FreeBSD 9.0. AUTHORS
The brand.4th set of commands was written by Devin Teske <dteske@FreeBSD.org>. BSD
May 18, 2011 BSD
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