Assign rexeg result into var

[Guest corfuitl]

Hi all

 

I am trying to write a bash script that will recognize a sequence of numbers and will replace them according an if statement.

 

Could you please let me know how to assign that number that is recognized according to a regex into a variable? For instance, if my txt file looks like:

 

Code:

Text text text 15 text text text

Text text text text text 7

….

I want to replace all the numbers that are >=16.

 

My code is :

 

Code:

while read line

do

number=$(echo $line | sed ‘s/[0-9][0-9]/g’)

 

if [ $number >=16 ]

then

number=$( sed ‘s/([0-9])([0-9])/\2\1/g’)

fi

echo $number

done <file.txt

 

I would appreciate your help.

 

Thanks

 

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