a64l - Linux

Overview

a64l is a Linux command-line utility for translating between AT&T 649E and Bell 103D line numbers. These line numbers are used to describe the terminal connection used by a teletypewriter. a64l is commonly used to convert line numbers in old documents or to troubleshoot communication issues involving TeleTypewriter (TTY) devices.

Syntax

a64l [OPTIONS] [103D-line-number]...

Options/Flags

• -a64: Translate a 103D line number to a 649E line number.
• -b103: Translate a 649E line number to a 103D line number.
• -q: Quiet mode, suppresses error messages.
• -d: Display the default translation table instead of doing a translation.
• -h/--help: Display help text.

Examples

To translate 103D line number 240 to 649E:

a64l -a64 240

To translate 649E line number 61 to 103D:

a64l -b103 61

To display the default translation table:

a64l -d

Common Issues

• Incorrect entry of the line number. Ensure the provided line number is valid and in the correct format.
• Using line numbers that are not within the valid range. a64l expects 649E line numbers to be between 0 and 63, and 103D line numbers to be between 0 and 255.

Integration

a64l can be used with other commands to automate tasks. For example, the following command chain translates a file named "line_numbers.txt" containing 103D line numbers, saves the output to "a64_line_numbers.txt", and sorts the results:

cat line_numbers.txt | a64l -a64 > a64_line_numbers.txt | sort -n

Related Commands

• bytes – Translate between ASCII, hex, octal, decimal, and binary.
• od – Dump the contents of a file in octal, decimal, or hex.
• uuencode – Encode a binary file as ASCII text.