Update telling-git-about-your-signing-key.md

[xty]

Corrected instructions for setting the GPG_TTY environment variables on GNU/Linux

Why:

The current instructions for setting GPG_TTY is unsuited for GNU/Linux. Unlike on macOS where interactive shells are also login shells, shells lauched by terminal emulators on GNU/Linux are non-login shells by default. As a result, neither .bash_profile nor .profile will be executed when they are started normally. See Bash Reference Manual for a fuller explanation.

What's being changed:

The relevant instructions have been updated to align with the standard practice of putting initialization commands in .bashrc on GNU/Linux. Please note that the GnuPG Manual also recommends that:

You should always add the following lines to your .bashrc or whatever initialization file is used for all shell invocations:

GPG_TTY=$(tty)
export GPG_TTY

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• I have reviewed my changes in staging (look for "Automatically generated comment" and click Modified to view your latest changes).
• For content changes, I have completed the self-review checklist.

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Source	Preview	Production	What Changed
content/authentication/managing-commit-signature-verification/telling-git-about-your-signing-key.md	Modified	Original

[ramyaparimi]

@xty
Thanks so much for opening a PR! I'll get this triaged for review ⚡

[vgrl]

This is a great contribution, thank you @xty !

One minor change to use the bash code block type instead of shell (we don't support the console type). I'll push this change and then the PR will be ready to merge 🎉 .

[vgrl]

Looks good in preview.

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[ALTURKA]

Duplicate of #