---
name: "hxunpipe"
section: "1"
platform: "linux"
package: "html-xml-utils"
version: "8.8-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/hxunpipe"
---

# hxunpipe(1)

convert output of hxpipe back to XML format

## NAME

hxunpipe - convert output of hxpipe back to XML format

## SYNOPSIS

**hxunpipe** \[ **-b** \] \[ *file-or-URL* \]

## DESCRIPTION

**hxunpipe** takes the output of [**hxpipe**(1)](/hxpipe/1.md) (or of  [**onsgmls**(1)](/onsgmls/1.md)) and turns it back into XML/SGML mark-up.

## OPTIONS

The following options are supported:

- **-b**

  Normally, **hxunpipe** assumes the input was made by hxpipe, i.e., the input may contain character entities but will never contain SGML/XML delimiters (\<\>&"') that need to be escaped. When the input was made by (o)nsgmls, however, the entities will have been expanded and the input may contain SGML/XML delimiters. The option **-b** causes **hxunpipe** to look for those delimiters and escape them: "\<" as "&lt;", "\>" as "&gt;", "&" as "&amp;", """ as "&quot;" and "'" as "&apos;".

## OPERANDS

The following operand is supported:

- *file-or-URL*

  The name or URL of an HTML file. If absent, standard input is read instead.

## EXIT STATUS

The following exit values are returned:

- **0**

  Successful completion.

- **\> 0**

  An error occurred in the input.

## ENVIRONMENT

To use a proxy to retrieve remote files, set the environment variables **http\_proxy** and **ftp\_proxy**. E.g., **http\_proxy="http://localhost:8080/"**

## BUGS

Not all syntax errors in the input are recognized.

**hxunpipe** can currently only retrieve remote files over HTTP. It doesn't handle password-protected files, nor files whose content depends on HTTP "cookies."

## SEE ALSO

[**hxpipe**(1)](/hxpipe/1.md), [**onsgmls**(1)](/onsgmls/1.md).