snippetbashTip

nh clean — Clean Nix profiles and delete unused and unreachable Nix store paths. Generations can be listed usin

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the nh clean command: Clean Nix profiles and delete unused and unreachable Nix store paths. Generations can be listed using nix-env --list-generations or nh os info. More information: <https://github.com/nix-community/nh#usage>.

Solution

nh clean — Clean Nix profiles and delete unused and unreachable Nix store paths. Generations can be listed using nix-env --list-generations or nh os info. More information: <https://github.com/nix-community/nh#usage>.

Ask for clean up plan confirmation, clean all profiles and collect garbage:

nh clean all {{[-a|--ask]}}

Keep a specified number of the most recent profiles for the current user and clean the remaining profiles:

nh clean user {{[-k|--keep]}} {{number}}

Clean a specific profile and collect garbage:

nh clean profile {{path/to/profile}}

Code Snippets

Ask for clean up plan confirmation, clean all profiles and collect garbage

nh clean all {{[-a|--ask]}}

Keep a specified number of the most recent profiles for the current user and clean the remaining profiles

nh clean user {{[-k|--keep]}} {{number}}

Clean a specific profile and collect garbage

nh clean profile {{path/to/profile}}

Context

tldr-pages: common/nh clean

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