.nh
.TH "restic backup" "1" "Jan 2017" "generated by \fBrestic generate\fR" ""

.SH NAME
restic-forget - Remove snapshots from the repository


.SH SYNOPSIS
\fBrestic forget [flags] [snapshot ID] [...]\fP


.SH DESCRIPTION
The "forget" command removes snapshots according to a policy. All snapshots are
first divided into groups according to "--group-by", and after that the policy
specified by the "--keep-\fI" options is applied to each group individually.
If there are not enough snapshots to keep one for each duration related
"--keep-{within-,}\fP" option, the oldest snapshot in the group is kept
additionally.

.PP
Please note that this command really only deletes the snapshot object in the
repository, which is a reference to data stored there. In order to remove the
unreferenced data after "forget" was run successfully, see the "prune" command.

.PP
Please also read the documentation for "forget" to learn about some important
security considerations.


.SH EXIT STATUS
Exit status is 0 if the command was successful.
Exit status is 1 if there was any error.
Exit status is 10 if the repository does not exist.
Exit status is 11 if the repository is already locked.
Exit status is 12 if the password is incorrect.


.SH OPTIONS
\fB-l\fP, \fB--keep-last\fP=0
	keep the last \fBn\fR snapshots (use 'unlimited' to keep all snapshots)

.PP
\fB-H\fP, \fB--keep-hourly\fP=0
	keep the last \fBn\fR hourly snapshots (use 'unlimited' to keep all hourly snapshots)

.PP
\fB-d\fP, \fB--keep-daily\fP=0
	keep the last \fBn\fR daily snapshots (use 'unlimited' to keep all daily snapshots)

.PP
\fB-w\fP, \fB--keep-weekly\fP=0
	keep the last \fBn\fR weekly snapshots (use 'unlimited' to keep all weekly snapshots)

.PP
\fB-m\fP, \fB--keep-monthly\fP=0
	keep the last \fBn\fR monthly snapshots (use 'unlimited' to keep all monthly snapshots)

.PP
\fB-y\fP, \fB--keep-yearly\fP=0
	keep the last \fBn\fR yearly snapshots (use 'unlimited' to keep all yearly snapshots)

.PP
\fB--keep-within\fP=
	keep snapshots that are newer than \fBduration\fR (eg. 1y5m7d2h) relative to the latest snapshot

.PP
\fB--keep-within-hourly\fP=
	keep hourly snapshots that are newer than \fBduration\fR (eg. 1y5m7d2h) relative to the latest snapshot

.PP
\fB--keep-within-daily\fP=
	keep daily snapshots that are newer than \fBduration\fR (eg. 1y5m7d2h) relative to the latest snapshot

.PP
\fB--keep-within-weekly\fP=
	keep weekly snapshots that are newer than \fBduration\fR (eg. 1y5m7d2h) relative to the latest snapshot

.PP
\fB--keep-within-monthly\fP=
	keep monthly snapshots that are newer than \fBduration\fR (eg. 1y5m7d2h) relative to the latest snapshot

.PP
\fB--keep-within-yearly\fP=
	keep yearly snapshots that are newer than \fBduration\fR (eg. 1y5m7d2h) relative to the latest snapshot

.PP
\fB--keep-tag\fP=[]
	keep snapshots with this \fBtaglist\fR (can be specified multiple times)

.PP
\fB--unsafe-allow-remove-all\fP[=false]
	allow deleting all snapshots of a snapshot group

.PP
\fB--host\fP=[]
	only consider snapshots for this \fBhost\fR (can be specified multiple times) (default: $RESTIC_HOST)

.PP
\fB--tag\fP=[]
	only consider snapshots including \fBtag[,tag,...]\fR (can be specified multiple times)

.PP
\fB--path\fP=[]
	only consider snapshots including this (absolute) \fBpath\fR (can be specified multiple times, snapshots must include all specified paths)

.PP
\fB-c\fP, \fB--compact\fP[=false]
	use compact output format

.PP
\fB-g\fP, \fB--group-by\fP=host,paths
	\fBgroup\fR snapshots by host, paths and/or tags, separated by comma (disable grouping with '')

.PP
\fB-n\fP, \fB--dry-run\fP[=false]
	do not delete anything, just print what would be done

.PP
\fB--prune\fP[=false]
	automatically run the 'prune' command if snapshots have been removed

.PP
\fB--max-unused\fP="5%"
	tolerate given \fBlimit\fR of unused data (absolute value in bytes with suffixes k/K, m/M, g/G, t/T, a value in % or the word 'unlimited')

.PP
\fB--max-repack-size\fP=""
	stop after repacking this much data in total (allowed suffixes for \fBsize\fR: k/K, m/M, g/G, t/T)

.PP
\fB--repack-cacheable-only\fP[=false]
	only repack packs which are cacheable

.PP
\fB--repack-small\fP[=false]
	repack pack files below 80% of target pack size

.PP
\fB--repack-uncompressed\fP[=false]
	repack all uncompressed data

.PP
\fB--repack-smaller-than\fP=""
	pack \fBbelow-limit\fR packfiles (allowed suffixes: k/K, m/M)

.PP
\fB-h\fP, \fB--help\fP[=false]
	help for forget


.SH OPTIONS INHERITED FROM PARENT COMMANDS
\fB--cacert\fP=[]
	\fBfile\fR to load root certificates from (default: use system certificates or $RESTIC_CACERT)

.PP
\fB--cache-dir\fP=""
	set the cache \fBdirectory\fR\&. (default: use system default cache directory)

.PP
\fB--cleanup-cache\fP[=false]
	auto remove old cache directories

.PP
\fB--compression\fP=auto
	compression mode (only available for repository format version 2), one of (auto|off|max) (default: $RESTIC_COMPRESSION)

.PP
\fB--http-user-agent\fP=""
	set a http user agent for outgoing http requests

.PP
\fB--insecure-no-password\fP[=false]
	use an empty password for the repository, must be passed to every restic command (insecure)

.PP
\fB--insecure-tls\fP[=false]
	skip TLS certificate verification when connecting to the repository (insecure)

.PP
\fB--json\fP[=false]
	set output mode to JSON for commands that support it

.PP
\fB--key-hint\fP=""
	\fBkey\fR ID of key to try decrypting first (default: $RESTIC_KEY_HINT)

.PP
\fB--limit-download\fP=0
	limits downloads to a maximum \fBrate\fR in KiB/s. (default: unlimited)

.PP
\fB--limit-upload\fP=0
	limits uploads to a maximum \fBrate\fR in KiB/s. (default: unlimited)

.PP
\fB--no-cache\fP[=false]
	do not use a local cache

.PP
\fB--no-extra-verify\fP[=false]
	skip additional verification of data before upload (see documentation)

.PP
\fB--no-lock\fP[=false]
	do not lock the repository, this allows some operations on read-only repositories

.PP
\fB-o\fP, \fB--option\fP=[]
	set extended option (\fBkey=value\fR, can be specified multiple times)

.PP
\fB--pack-size\fP=0
	set target pack \fBsize\fR in MiB, created pack files may be larger (default: $RESTIC_PACK_SIZE)

.PP
\fB--password-command\fP=""
	shell \fBcommand\fR to obtain the repository password from (default: $RESTIC_PASSWORD_COMMAND)

.PP
\fB-p\fP, \fB--password-file\fP=""
	\fBfile\fR to read the repository password from (default: $RESTIC_PASSWORD_FILE)

.PP
\fB-q\fP, \fB--quiet\fP[=false]
	do not output comprehensive progress report

.PP
\fB-r\fP, \fB--repo\fP=""
	\fBrepository\fR to backup to or restore from (default: $RESTIC_REPOSITORY)

.PP
\fB--repository-file\fP=""
	\fBfile\fR to read the repository location from (default: $RESTIC_REPOSITORY_FILE)

.PP
\fB--retry-lock\fP=0s
	retry to lock the repository if it is already locked, takes a value like 5m or 2h (default: no retries)

.PP
\fB--stuck-request-timeout\fP=5m0s
	\fBduration\fR after which to retry stuck requests

.PP
\fB--tls-client-cert\fP=""
	path to a \fBfile\fR containing PEM encoded TLS client certificate and private key (default: $RESTIC_TLS_CLIENT_CERT)

.PP
\fB-v\fP, \fB--verbose\fP[=0]
	be verbose (specify multiple times or a level using --verbose=n``, max level/times is 2)


.SH SEE ALSO
\fBrestic(1)\fP