Simon Willison’s Weblog

Adding a 'bak' comment to your .bash_profile. Quickly create a timestamped backup of a file.

Posted 3rd April 2005 at 11:44 pm

Recent articles

Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025
Dane Stuckey (OpenAI CISO) on prompt injection risks for ChatGPT Atlas - 22nd October 2025
Living dangerously with Claude - 22nd October 2025

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