Linux Administration Bootcamp: Go from Beginner to Advanced - Striping out Comments and Blank Lines

The video tutorial explains the use of the grep command with options like -E for extended regular expressions and -V to invert matches. It covers regular expression symbols such as ^ for the beginning of a line and $ for the end of a line. A practical example is shown using a configuration file to demonstrate how to remove comments and blank lines, resulting in a more compact file with only essential configuration information.

How can you use grep to filter out comments and blank lines from a file?

What was the effect on the number of lines in the file after stripping out comments and blank lines?