MODULECMD(1)

📦 version 5.7.0, in arch rolling, centos-stream 10

💅 MODULECMD(1) — the Modules manual, bestie edition 🎀

ok so you opened the modulecmd page (section 1 of the Modules manual, hi 👋) and honestly? you're in the engine room now. buckle up ✨

🌸 NAME 🌸

modulecmd — a generic wrapper that points at the Modules execution engine. that's it, that's the vibe 🫶

⭐ SYNOPSIS ⭐

modulecmd shell [switches] [sub-command [sub-command-args]]

💖 DESCRIPTION 💖

okay so modulecmd is a generic wrapper — it just points over at the Modules execution engine, modulecmd.tcl. literally a little signpost with main character energy 👑

modulecmd.tcl is the low-level execution engine of the Environment Modules system. bestie, this is the one doing the actual work: it evaluates modulefile logic and emits shell-specific commands that modify the user's environment. ate and left no crumbs 🔥

and here's the important plot twist — unlike the user-facing module command, modulecmd.tcl does not directly alter the environment. nope 🙈 instead it writes shell code to standard output, which must be evaluated by the calling shell. it's giving "i made you a playlist, you gotta press play yourself" 🎧

so the module shell function or wrapper script invokes modulecmd.tcl internally and evaluates its output to actually apply the environment changes. teamwork, slay 🤝

these are the supported shells, and yes the list is long, she's thorough 💅:

sh, csh, tcsh, bash, ksh, zsh, fish, cmd, pwsh, python, perl, ruby, tcl, cmake, r and lisp

📚 for the full lore, go peek at the Modulecmd startup, Command line switches and Module Sub-Commands sections in the module man page. iykyk ✨

ngl, direct invocation of modulecmd is primarily intended for debugging and advanced usage. end users should normally use the module command instead — that's the friendly front door, this is the secret staff entrance 🚪🦋

🦋 EXIT STATUS 🦋

modulecmd exits with 0 on successful execution. otherwise 1 is returned. no in-between, no "it's complicated" 💀

🎀 ENVIRONMENT 🎀

see the ENVIRONMENT section in the module man page for the whole rundown 💜

🌈 FILES 🌈

see the FILES section in the module man page, all the deets live there 📂✨

👑 SEE ALSO 👑

  • envml
  • ml
  • module
  • modulefile

go read them, they're iconic, all of them 🌟

1996-2026, Modules Contributors 🫶

and that's a wrap, bestie — brought to you by version 5.7.0, dated 2026-09-21. go forth and configure your environment, you absolute legend 💅🌸💖

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