Finding html tag

 Table Expression       => “]*>(.*?)” 
 Header Expression    => “]*>(.*?)” 
 Row Expression        => “]*>(.*?)” 
 Column Expression    => “]*>(.*?)” 
 Finding html tag          => "\s]+))?)+\s*|\s*)/?>"

Sort-command alphanumeric

Sort-command alphanumeric

If they all actually begin with "page$"

echo "page$1
page$20
page$2
page$10" | sort -k1.5n

Answer :

page$1
page$2
page$10
page$20

sort -k1.5n

 

-k to set the key
1.5 means that the 5th character of the 1st field is the start of the sort field
n means that this field is to be treated as numeric

Sample Commands

sort -k 5 -n

sort -t ":" -k 3 -n /etc/psswd