---
name: "gt-seqfilter"
section: "1"
platform: "linux"
package: "genometools"
version: "1.6.5+ds-2.2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gt-seqfilter"
---

# gt-seqfilter(1)

Filter the given sequence file(s) and show the results on stdout.

## NAME

gt-seqfilter - Filter the given sequence file(s) and show the results on stdout.

## SYNOPSIS

**gt seqfilter** \[option ...\] \[sequence\_file ...\]

## DESCRIPTION

- **-minlength** \[*value*\]

  set minimum length a sequence must have to pass the filter (default: undefined)

- **-maxlength** \[*value*\]

  set maximum length a sequence can have to pass the filter (default: undefined)

- **-maxseqnum** \[*value*\]

  set the maximum number of sequences which can pass the filter (default: undefined)

- **-sample** \[*value*\]

  set a probability for each sequence to pass the filter (default: 1.000000)

- **-step** \[*value*\]

  only every *step*-th sequence passes the filter (default: 1)

- **-nowildcards** \[*yes\|no*\]

  filter out seqences containing wildcards (default: no)

- **-width** \[*value*\]

  set output width for FASTA sequence printing (0 disables formatting) (default: 0)

- **-o** \[*filename*\]

  redirect output to specified file (default: undefined)

- **-gzip** \[*yes\|no*\]

  write gzip compressed output file (default: no)

- **-bzip2** \[*yes\|no*\]

  write bzip2 compressed output file (default: no)

- **-force** \[*yes\|no*\]

  force writing to output file (default: no)

- **-help**

  display help and exit

- **-version**

  display version information and exit

## REPORTING BUGS

Report bugs to https://github.com/genometools/genometools/issues.