> For the complete documentation index, see [llms.txt](https://capcap-1.gitbook.io/capcap/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://capcap-1.gitbook.io/capcap/readme/ctf-modules/information-gathering/network-enumeration-with-nmap/saving-the-results.md).
# Saving the Results
Always save scan output.
Saved results help you compare scans, revisit findings, and document evidence later.
### Output formats
Nmap can save results in three main formats:
* normal output with `-oN` and the `.nmap` extension
* grepable output with `-oG` and the `.gnmap` extension
* XML output with `-oX` and the `.xml` extension
If you want all three at once, use `-oA`.
### Save all formats at once
```bash
impale7@htb[/htb]$ sudo nmap 10.129.2.28 -p- -oA target
Starting Nmap 7.80 ( https://nmap.org ) at 2020-06-16 12:14 CEST
Nmap scan report for 10.129.2.28
Host is up (0.0091s latency).
Not shown: 65525 closed ports
PORT STATE SERVICE
22/tcp open ssh
25/tcp open smtp
80/tcp open http
MAC Address: DE:AD:00:00:BE:EF (Intel Corporate)
Nmap done: 1 IP address (1 host up) scanned in 10.22 seconds
```
What this does:
* `10.129.2.28` targets the host
* `-p-` scans all TCP ports
* `-oA target` writes `target.nmap`, `target.gnmap`, and `target.xml`
If you do not provide a full path, Nmap writes the files to your current directory.
### Check the generated files
```bash
impale7@htb[/htb]$ ls
target.gnmap target.nmap target.xml
```
### Normal output
Use normal output when you want something easy to read during analysis.
```bash
impale7@htb[/htb]$ cat target.nmap
# Nmap 7.80 scan initiated Tue Jun 16 12:14:53 2020 as: nmap -p- -oA target 10.129.2.28
Nmap scan report for 10.129.2.28
Host is up (0.053s latency).
Not shown: 4 closed ports
PORT STATE SERVICE
22/tcp open ssh
25/tcp open smtp
80/tcp open http
MAC Address: DE:AD:00:00:BE:EF (Intel Corporate)
# Nmap done at Tue Jun 16 12:15:03 2020 -- 1 IP address (1 host up) scanned in 10.22 seconds
```
### Grepable output
Use grepable output when you want to filter results with shell tools.
```bash
impale7@htb[/htb]$ cat target.gnmap
# Nmap 7.80 scan initiated Tue Jun 16 12:14:53 2020 as: nmap -p- -oA target 10.129.2.28
Host: 10.129.2.28 () Status: Up
Host: 10.129.2.28 () Ports: 22/open/tcp//ssh///, 25/open/tcp//smtp///, 80/open/tcp//http/// Ignored State: closed (4)
# Nmap done at Tue Jun 16 12:14:53 2020 -- 1 IP address (1 host up) scanned in 10.22 seconds
```
{% hint style="info" %}
Grepable output is handy for quick parsing, but XML is better for structured automation.
{% endhint %}
### XML output
Use XML output when you want machine-readable data for scripts, imports, or reports.
```xml
```
### Convert XML to HTML
XML becomes much easier to share once you render it as HTML.
Use `xsltproc` to convert the saved XML file:
```bash
impale7@htb[/htb]$ xsltproc target.xml -o target.html
```
This creates a report you can open in a browser.
That is useful when you need a cleaner format for notes, screenshots, or client-facing documentation.
### Further reading
See the official [Nmap output guide](https://nmap.org/book/output.html).
---
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