Saving scan results in a grepable format

Nmap supports different file formats when saving the results of a scan. Depending on your needs, you may choose between the normal, grepable, and XML format. The grepable format was included to help users extract information from logs without having to write a parser, as this format is meant to be read/parsed with standard Unix tools. Although this feature is deprecated, some people still find it useful for doing quick jobs.

In the following recipe, we will show you how to output Nmap scans in grepable mode.

How to do it...

To save the scan results to a file in the grepable format, add the option -oG <filename>,as shown in the following command:

# nmap -F -oG scanme.grep

The output file should ...

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