https://r4ven.me/en/tags/scripting/Recent content in Scripting on Вороний блог | Linux и ITHugoen-USSun, 31 May 2026 00:00:00 +0000https://r4ven.me/en/automation/bash-generaciya-konfigov-cherez-envsubst-here-document-i-here-string/Sun, 31 May 2026 00:00:00 +0000https://r4ven.me/en/automation/bash-generaciya-konfigov-cherez-envsubst-here-document-i-here-string/<strong>Greetings! <i class="fa-solid fa-crow"></i> </strong> <p>In this note, we will briefly look at a few simple ways to build a config from a Bash script using <code>here document</code>, <code>here string</code>, and <code>envsubst</code>.</p> <p>I probably would not call this full-fledged templating. It is more like regular text file generation with variable substitution. But in practice, this is usually enough: create a config on the first container startup, substitute a domain, port, path to the working directory, or SMTP parameters.</p>