jc/docs/parsers/last.md

jc.parsers.last

jc - JSON CLI output utility last Parser

Usage:

specify --last as the first argument if the piped input is coming from last or lastb

Compatibility:

'linux', 'darwin', 'aix', 'freebsd'

Examples:

$ last | jc --last -p
[
  {
    "user": "kbrazil",
    "tty": "ttys002",
    "hostname": null,
    "login": "Thu Feb 27 14:31",
    "logout": "still logged in"
  },
  {
    "user": "kbrazil",
    "tty": "ttys003",
    "hostname": null,
    "login": "Thu Feb 27 10:38",
    "logout": "10:38",
    "duration": "00:00"
  },
  {
    "user": "kbrazil",
    "tty": "ttys003",
    "hostname": null,
    "login": "Thu Feb 27 10:18",
    "logout": "10:18",
    "duration": "00:00"
  },
  ...
]

$ last | jc --last -p -r
[
  {
    "user": "kbrazil",
    "tty": "ttys002",
    "hostname": "-",
    "login": "Thu Feb 27 14:31",
    "logout": "still_logged_in"
  },
  {
    "user": "kbrazil",
    "tty": "ttys003",
    "hostname": "-",
    "login": "Thu Feb 27 10:38",
    "logout": "10:38",
    "duration": "00:00"
  },
  {
    "user": "kbrazil",
    "tty": "ttys003",
    "hostname": "-",
    "login": "Thu Feb 27 10:18",
    "logout": "10:18",
    "duration": "00:00"
  },
  ...
]

info

info(self, /, *args, **kwargs)

process

process(proc_data)

Final processing to conform to the schema.

Parameters:

proc_data:   (dictionary) raw structured data to process

Returns:

List of dictionaries. Structured data with the following schema:

[
  {
    "user":       string,
    "tty":        string,
    "hostname":   string,
    "login":      string,
    "logout":     string,
    "duration":   string
  }
]

parse

parse(data, raw=False, quiet=False)

Main text parsing function

Parameters:

data:        (string)  text data to parse
raw:         (boolean) output preprocessed JSON if True
quiet:       (boolean) suppress warning messages if True

Returns:

List of dictionaries. Raw or processed structured data.