---
name: "bowtie2-inspect-l"
section: "1"
platform: "linux"
package: "bowtie2"
version: "2.5.4-1+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/bowtie2-inspect-l"
---

# bowtie2-inspect-l(1)

extracts information from a bowtie2 index

## NAME

bowtie2-inspect-l - extracts information from a bowtie2 index

## SYNOPSIS

**bowtie2-inspect** \[*options*\]*\* \<bt2\_base\>*

## DESCRIPTION

Bowtie 2 version 2.5.4 by Ben Langmead (langmea@cs.jhu.edu, www.cs.jhu.edu/~langmea)

- \<bt2\_base\>

  bt2 filename minus trailing .1.bt2l/.2.bt2l

-

  By default, prints FASTA records of the indexed nucleotide sequences to standard out.  With **-n**, just prints names.  With **-s**, just prints a summary of the index parameters and sequences.

## OPTIONS

- **-a**/--across \<int\>

  Number of characters across in FASTA output (default: 60)

- **-n**/--names

  Print reference sequence names only

- **-s**/--summary

  Print summary incl. ref names, lengths, index properties

- **-o**/--output

  Save output to filename (default stdout)

- **-v**/--verbose

  Verbose output (for debugging)

- **-h**/--help

  print this and message quit