'\" t .TH "SYSTEMD\&.SNAPSHOT" "5" "" "systemd 215" "systemd.snapshot" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" systemd.snapshot \- Snapshot unit configuration .SH "SYNOPSIS" .PP \fIsnapshot\fR\&.snapshot .SH "DESCRIPTION" .PP Snapshot units are not configured via unit configuration files\&. Nonetheless they are named similar to filenames\&. A unit whose name ends in "\&.snapshot" refers to a dynamic snapshot of the systemd runtime state\&. .PP Snapshots are not configured on disk but created dynamically via \fBsystemctl snapshot\fR (see \fBsystemctl\fR(1) for details) or an equivalent command\&. When created, they will automatically get dependencies on the currently activated units\&. They act as saved runtime state of the systemd manager\&. Later on, the user may choose to return to the saved state via \fBsystemctl isolate\fR\&. They are useful to roll back to a defined state after temporarily starting/stopping services or similar\&. .SH "SEE ALSO" .PP \fBsystemd\fR(1), \fBsystemctl\fR(1), \fBsystemd.unit\fR(5), \fBsystemd.directives\fR(7)