Find and replace in shell scripting

Question

Is it possible to search in a file using shell and then replace a value? When I install a service I would like to be able to search out a variable in a config file and then replace/insert my own settings in that value.

Answer 1

Sure, you can do this using sed or awk. sed example:

sed -i 's/Andrew/James/g' /home/oleksandr/names.txt