Send a Useful GNU Awk Bug Report with gawkbug

You will finish with a bug report template filled with the details GNU Awk maintainers need, and send it either to the default mailing list or to a recipient you specify. The examples use gawkbug 5.2.1 from Ubuntu package gawk version 1:5.2.1-2ubuntu0.1.

Allow about fifteen minutes for a small report, or longer if you need to reduce a complicated failure to a minimal reproducer. You need a shell, an installed editor, and enough information to reproduce the behaviour. This workflow normally needs no elevated privileges. Do not run it with sudo: the report should describe the environment of the user who sees the problem.

1. Confirm the installed command

Check which executable will run and record its version:

$ command -v gawkbug
/usr/bin/gawkbug
$ gawkbug --version
GNU gawkbug, version 5.2.1
$ dpkg-query -W -f='${Package} ${Version}\n' gawk
gawk 1:5.2.1-2ubuntu0.1

Your path and package version can differ. The version matters because a report should identify the program being tested, not just the operating system. If the command is missing, install the gawk package through your normal package-management process and return to this step.

Checkpoint: write down the exact gawk version, the command that failed, and the smallest input file or shell command that still shows the problem. Keep private data out of the reproducer before you send it.

2. Read the available options

Ask the installed script for its usage text:

$ gawkbug --help
Usage: /usr/bin/gawkbug [--help] [--version] [bug-report-email-address]

The positional value is an alternative recipient address. With no address, the report is mailed to [email protected]. The GNU manual's bug-reporting guidance is worth reading before you submit, because a clear reproducer is more useful than a long description of symptoms.

There are no options here for attaching a file, selecting a subject or enabling a debug mode. Put the relevant command, input and observed output into the template. If you need to share a larger reproducer, describe how the maintainers can obtain it through a suitable project channel rather than pasting secrets into the report.

3. Prepare a safe report before starting the editor

Run the failing command again and capture the useful facts. Include the expected result, actual result, exit status, a minimal input, and the exact command line. Also note any shell variables or locale settings that affect the result. Remove passwords, access tokens, personal data and private file contents. A bug report is an external disclosure, so treat it as security-sensitive if the failure involves confidential material.

Do not include a full home directory listing or unrelated logs merely because they are available. Narrow evidence makes the report easier to reproduce and reduces accidental disclosure. If the issue may be a security vulnerability, follow the project's current security contact process instead of publishing exploit details to a public mailing list.

4. Choose the editor and start the report

Set EDITOR for this invocation if you do not want the script to guess. The value should name an editor executable available to your user:

$ EDITOR=vi gawkbug

gawkbug creates a temporary copy of its report outline and opens it in the editor. If EDITOR is not set, the installed script tries available editors including vim and, if necessary, emacs, then attempts vi. Set the variable explicitly when a graphical editor or a different terminal editor would distract you.

Fill in the machine, operating system, GNU Awk version and compilation details in the first section. Describe the bug in the second section. Put a step-by-step reproducer in the third. The fourth section is optional, but a proposed fix is welcome when you have one. Save the file and exit the editor to let the script continue.

Checkpoint: before allowing the command to send anything, reread the recipient, subject and report body. If you started gawkbug accidentally, quit the editor without saving changes. The installed command recognises an unchanged template and asks whether to give up; answer that prompt to abandon the report.

5. Send to a different recipient when appropriate

Pass one address after the options when the report belongs somewhere other than the default list. For a harmless address-shape test, use an address supplied by your project or organisation, not a guessed public mailbox:

$ EDITOR=vi gawkbug [email protected]

The address is handed to the mail step as the report recipient. This does not encrypt the message or change the sensitivity of the data. Confirm the address before you save and exit the editor. Do not use a recipient override to bypass a project's security-reporting process.

6. Recover if mail delivery fails

If the completed report cannot be mailed, gawkbug saves it as dead.gawkbug in your home directory. Check that file before trying again:

$ ls -l "$HOME/dead.gawkbug"
$ sed -n '1,120p' "$HOME/dead.gawkbug"

The file is a recovery copy, not proof that the report was delivered. Keep it until you have confirmed delivery or copied its contents into the project's approved reporting channel. If it contains secrets, stop and protect the file using your normal local access controls before deciding how to remove or redact it. Do not paste the same report repeatedly without checking whether the first mail attempt actually arrived.

To retry after fixing the mail problem, start gawkbug again and use the saved report as your reference. The script's temporary editing area is not the recovery location; HOME determines where dead.gawkbug is saved. TMPDIR determines where temporary files and directories are created, so keep it writable and private enough for report contents.

7. Verify the report is actionable

A successful return from the command means the local mail step completed; it does not mean a maintainer has reproduced or accepted the bug. Check your mail system or sent-mail record using your normal mail tools. Keep the minimal reproducer available and answer follow-up questions with new results from the same version and environment.

Before closing the incident, compare the report with this short check:

• The report names the installed GNU Awk version and relevant platform details.
• The observed result is separated from the expected result.
• Another reader can reproduce the failure from the stated command and input.
• Secrets and unrelated private data have been removed.
• You know whether the message was delivered, or you retained dead.gawkbug for recovery.