.TH "NPM\-CACHE" "1" "June 2016" "" ""
.SH "NAME"
\fBnpm-cache\fR \- Manipulates packages cache
.SH SYNOPSIS
.P
.RS 2
.nf
npm cache add <tarball file>
npm cache add <folder>
npm cache add <tarball url>
npm cache add <name>@<version>

npm cache ls [<path>]

npm cache clean [<path>]
.fi
.RE
.SH DESCRIPTION
.P
Used to add, list, or clear the npm cache folder\.
.RS 0
.IP \(bu 2
add:
Add the specified package to the local cache\.  This command is primarily
intended to be used internally by npm, but it can provide a way to
add data to the local installation cache explicitly\.
.IP \(bu 2
ls:
Show the data in the cache\.  Argument is a path to show in the cache
folder\.  Works a bit like the \fBfind\fP program, but limited by the
\fBdepth\fP config\.
.IP \(bu 2
clean:
Delete data out of the cache folder\.  If an argument is provided, then
it specifies a subpath to delete\.  If no argument is provided, then
the entire cache is cleared\.

.RE
.SH DETAILS
.P
npm stores cache data in the directory specified in \fBnpm config get cache\fP\|\.
For each package that is added to the cache, three pieces of information are
stored in \fB{cache}/{name}/{version}\fP:
.RS 0
.IP \(bu 2
\|\.\.\./package/package\.json:
The package\.json file, as npm sees it\.
.IP \(bu 2
\|\.\.\./package\.tgz:
The tarball for that version\.

.RE
.P
Additionally, whenever a registry request is made, a \fB\|\.cache\.json\fP file
is placed at the corresponding URI, to store the ETag and the requested
data\.  This is stored in \fB{cache}/{hostname}/{path}/\.cache\.json\fP\|\.
.P
Commands that make non\-essential registry requests (such as \fBsearch\fP and
\fBview\fP, or the completion scripts) generally specify a minimum timeout\.
If the \fB\|\.cache\.json\fP file is younger than the specified timeout, then
they do not make an HTTP request to the registry\.
.SH CONFIGURATION
.SS cache
.P
Default: \fB~/\.npm\fP on Posix, or \fB%AppData%/npm\-cache\fP on Windows\.
.P
The root cache folder\.
.SH SEE ALSO
.RS 0
.IP \(bu 2
npm help 5 folders
.IP \(bu 2
npm help config
.IP \(bu 2
npm help 7 config
.IP \(bu 2
npm help 5 npmrc
.IP \(bu 2
npm help install
.IP \(bu 2
npm help publish
.IP \(bu 2
npm help pack

.RE