sed "${i}s/$/${age}/g" birthday.csv
Worked great thanks very much :)

Can I use my own variables within awk and sed for example:
I've written a while loop with a counter $i and I want to use the value of $i within sed and awk to edit certain lines of text within a...

That works great thanks :D

Hi,
how do you append to a variable? I can only get it to work with a seperate file like this:

printf $number1 >> sum.txt

I tried this :

$number1 >> $sum

but it says $sum: ambiguous...

Hi I have a simple question.
Is there an easy way read a date of birth from a file and calculate how old that person is based on today's date? And would I need the make sure the birthdates are...