Provided by: nix-bin_2.26.3+dfsg-1ubuntu4_amd64 

Name
nix profile rollback - roll back to the previous version or a specified version of a profile
Synopsis
nix profile rollback [option…]
Examples
• Roll back your default profile to the previous version:
# nix profile rollback
switching profile from version 519 to 518
• Switch your default profile to version 510:
# nix profile rollback --to 510
switching profile from version 518 to 510
Description
This command switches a profile to the most recent version older than the currently active version, or if
--to N is given, to version N of the profile. To see the available versions of a profile, use nix profile
history.
Options
• --dry-run
Show what this command would do without doing it.
• --profile path
The profile to operate on.
• --to version
The profile version to roll back to.
Logging-related options
• --debug
Set the logging verbosity level to ‘debug’.
• --log-format format
Set the format of log output; one of raw, internal-json, bar or bar-with-logs.
• --print-build-logs / -L
Print full build logs on standard error.
• --quiet
Decrease the logging verbosity level.
• --verbose / -v
Increase the logging verbosity level.
Miscellaneous global options
• --help
Show usage information.
• --offline
Disable substituters and consider all previously downloaded files up-to-date.
• --option name value
Set the Nix configuration setting name to value (overriding nix.conf).
• --refresh
Consider all previously downloaded files out-of-date.
• --version
Show version information.
Note
See man nix.conf for overriding configuration settings with command line flags.
nix3-profile-rollback(1)