---
name: "accn-at-a-time"
section: "1"
platform: "linux"
package: "ncbi-entrez-direct"
version: "24.0.20250523+dfsg-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/accn-at-a-time"
---

# accn-at-a-time(1)

parse an input file into biological identifiers

## NAME

accn-at-a-time - parse an input file into biological identifiers

## SYNOPSIS

**accn-at-a-time**

## DESCRIPTION

**accn-at-a-time** reads a text file from standard input, extracts all sequences of digits, English letters, underscores, and periods, lowercases any capital letters, and prints the resulting terms in input order, one per line.

## SEE ALSO

[**pair-at-a-time**(1)](/pair-at-a-time/1.md), [**word-at-a-time**(1)](/word-at-a-time/1.md).