OS Manuals

/usr/bin/systemd-id128

The systemd System and Service Manager

From systemd 262.2-r1 (os), captured 2026-11-05 by running systemd-id128 --help (exit 0). permalink

> systemd-id128 [OPTION…] COMMAND …

Generate and print 128-bit identifiers.

Commands:
  new                  Generate a new ID
  machine-id           Print the ID of current machine
  boot-id              Print the ID of current boot
  invocation-id        Print the ID of current invocation
  var-partition-uuid   Print the UUID for the /var/ partition
  show [NAME|UUID]     Print one or more UUIDs
  help                 Show this help

Options:
  -h --help            Show this help
     --version         Show package version
     --no-pager        Do not start a pager
     --no-legend       Do not show headers and footers
     --json=FORMAT     Output inspection data in JSON (takes one of pretty, short, off)
  -j                   Equivalent to --json=pretty (on TTY) or --json=short (otherwise)
  -p --pretty          Generate samples of program code
  -P --value           Only print the value
  -a --app-specific=ID Generate app-specific IDs
  -u --uuid            Output in UUID format

See the systemd-id128(1) man page for details.
Options (9)
OptionDescriptionSource
-h --helpShow this helphelp
--versionShow package versionhelp
--no-pagerDo not start a pagerhelp
--no-legendDo not show headers and footershelp
--json FORMATOutput inspection data in JSON (takes one of pretty, short, off)help
-jEquivalent to --json=pretty (on TTY) or --json=short (otherwise)help
-p --prettyGenerate samples of program codehelp
-P --valueOnly print the valuehelp
-u --uuidOutput in UUID formathelp

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.