---
name: "MBK_IN_FILTER"
section: "1"
platform: "linux"
package: "alliance"
version: "5.1.1-3"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/MBK_IN_FILTER"
---

# MBK\_IN\_FILTER(1)

define the input filter

## NAME

MBK\_IN\_FILTER - define the input filter

## DESCRIPTION

**MBK\_IN\_FILTER** set the input filter for reading compressed Alliance files. Filter is typically a string containing filename and options. This filter must read compressed data flow on it standard input and write non compressed data flow on it standard output. Files are taken in the first directory where they are found according to the environment variable **MBK\_CATA\_LIB. If a** **file compressed version and a file non compressed version exist booth in the** **same directory, the non compressed is opended, and a warning message is** **supllyed. To activate filters, variable MBK\_FILTER\_SFX must be set.**

## EXAMPLE

```
Opening compressed files with gzip :
	setenv MBK_IN_FILTER "/asim/gnu/bin/gunzip -c"
	setenv MBK_FILTER_SFX ".gz"
```

## SEE ALSO

[**mbk**(3)](/mbk/3.md), [**MBK\_FILTER\_SFX**(1)](/MBK_FILTER_SFX/1.md), [**MBK\_OUT\_FILTER**(1)](/MBK_OUT_FILTER/1.md), [**mbkenv**(3)](/mbkenv/3.md).