.\" -*- mode: troff; coding: utf-8 -*-
.TH "nix3-store-optimise" "1" ""
.RS
.PP
\fBWarning\fR 
.br
This program is
\fB\fBexperimental\fR\fR
and its interface is subject to change.
.RE
.SH
Name
.LP
\f(CRnix store optimise\fR - replace identical files in the store by hard links
.SH
Synopsis
.LP
\f(CRnix store optimise\fR [\fIoption\fR\[u2026]] 
.SH
Examples
.IP "\(bu" 3
Optimise the Nix store:
.LP
.EX
nix store optimise
.EE
.SH
Description
.LP
This command deduplicates the Nix store: it scans the store for
regular files with identical contents, and replaces them with hard
links to a single instance.
.PP
Note that you can also set \f(CRauto-optimise-store\fR to \f(CRtrue\fR in
\f(CRnix.conf\fR to perform this optimisation incrementally whenever a new
path is added to the Nix store. To make this efficient, Nix maintains
a content-addressed index of all the files in the Nix store in the
directory \f(CR/nix/store/.links/\fR.