Summary
In this chapter, we have seen how we can extend sed
into some very cool scripts that have allowed us to extract data from files, uncomment selected lines and write new configurations. Not stopping at that we also saw how we could use sed
with script that inserts new lines into existing files. I thought that sed
will very quickly become your friend and we have created some powerful scripts to support the learning experience.
You may already know this but sed
has a big brother awk
. In the next chapter, we are going to see how we can use awk
to extract data from files.
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