What are Nmap output options?

Nmap provides several output options to save scan results in different formats. Here are the main output options:

Normal Output (-oN): Saves the scan results in a human-readable text format.
```
nmap <target_ip> -oN output.txt
```
XML Output (-oX): Saves the results in XML format, which is structured and can be easily parsed by other tools.
```
nmap <target_ip> -oX output.xml
```
Grepable Output (-oG): Saves the results in a format that is easy to process with command-line tools like grep.
```
nmap <target_ip> -oG output.gnmap
```
Script Kiddie Output (-oS): A less common format that is designed to be more "script kiddie" friendly, but not typically used in professional assessments.
```
nmap <target_ip> -oS output.txt
```
All Formats (-oA): Saves the scan results in all three formats (normal, XML, and grepable) with a common base filename.
```
nmap <target_ip> -oA output
```

These options allow users to choose the format that best suits their needs for analysis, reporting, or integration with other tools.