In the following video, Bash: Find String In File By Line Number and Edit File, we look at a common tasking of searching a file for a string (or various strings if applicable). This can come up quite often during troubleshooting where we're trying to verify information in files.
Some questions that are answered in the video:
- How do we get a specific line from a file?
- Once we find what we need to edit in the file, what combination of keys do we use to edit the file?
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While searching files for values can be useful in many situations, be careful when considering any type of configuration setup. If it's easy for you to identify values, it's easy for hackers to identify values. This video shows us how we can quickly identify values and hackers can also use these same techniques, so it's worth noting how easy it is to access, search and possibly edit files.
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