register, reg\
Show postings and their running total.

_FLAGS

The register command displays matched postings, across all accounts,
in date order, with their running total or running historical balance.
(See also the [`aregister`](#aregister) command, which shows matched
transactions in a specific account.)

register normally shows line per posting, but note that
multi-commodity amounts will occupy multiple lines (one line per
commodity).

It is typically used with a [query](#queries) selecting a
particular account, to see that account's activity:

```shell
$ hledger register checking
2008/01/01 income               assets:bank:checking            $1           $1
2008/06/01 gift                 assets:bank:checking            $1           $2
2008/06/02 save                 assets:bank:checking           $-1           $1
2008/12/31 pay off              assets:bank:checking           $-1            0
```

With --date2, it shows and sorts by secondary date instead.

The `--historical`/`-H` flag adds the balance from any undisplayed
prior postings to the running total.  This is useful when you want to
see only recent activity, with a historically accurate running balance:

```shell
$ hledger register checking -b 2008/6 --historical
2008/06/01 gift                 assets:bank:checking            $1           $2
2008/06/02 save                 assets:bank:checking           $-1           $1
2008/12/31 pay off              assets:bank:checking           $-1            0
```

The `--depth` option limits the amount of sub-account detail displayed.

The `--average`/`-A` flag shows the running average posting amount
instead of the running total (so, the final number displayed is the
average for the whole report period). This flag implies `--empty` (see below).
It is affected by `--historical`.
It works best when showing just one account and one commodity.

The `--related`/`-r` flag shows the *other* postings in the transactions
of the postings which would normally be shown.

The `--invert` flag negates all amounts.
For example, it can be used on an income account where amounts are normally
displayed as negative numbers.
It's also useful to show postings on the checking account together with the
related account:

```shell
$ hledger register --related --invert assets:checking
```

With a [reporting interval](#reporting-interval), register shows
summary postings, one per interval, aggregating the postings to each account:

```shell
$ hledger register --monthly income
2008/01                 income:salary                          $-1          $-1
2008/06                 income:gifts                           $-1          $-2
```
Periods with no activity, and summary postings with a zero amount, are
not shown by default; use the `--empty`/`-E` flag to see them:

```shell
$ hledger register --monthly income -E
2008/01                 income:salary                          $-1          $-1
2008/02                                                          0          $-1
2008/03                                                          0          $-1
2008/04                                                          0          $-1
2008/05                                                          0          $-1
2008/06                 income:gifts                           $-1          $-2
2008/07                                                          0          $-2
2008/08                                                          0          $-2
2008/09                                                          0          $-2
2008/10                                                          0          $-2
2008/11                                                          0          $-2
2008/12                                                          0          $-2
```

Often, you'll want to see just one line per interval.
The `--depth` option helps with this, causing subaccounts to be aggregated:

```shell
$ hledger register --monthly assets --depth 1h
2008/01                 assets                                  $1           $1
2008/06                 assets                                 $-1            0
2008/12                 assets                                 $-1          $-1
```

Note when using report intervals, if you specify start/end dates these
will be adjusted outward if necessary to contain a whole number of
intervals. This ensures that the first and last intervals are full
length and comparable to the others in the report.

### Custom register output

register uses the full terminal width by default, except on windows.
You can override this by setting the `COLUMNS` environment variable (not a bash shell variable)
or by using the `--width`/`-w` option.

The description and account columns normally share the space equally
(about half of (width - 40) each). You can adjust this by adding a
description width as part of --width's argument, comma-separated:
`--width W,D` . Here's a diagram (won't display correctly in --help):
```
<--------------------------------- width (W) ---------------------------------->
date (10)  description (D)       account (W-41-D)     amount (12)   balance (12)
DDDDDDDDDD dddddddddddddddddddd  aaaaaaaaaaaaaaaaaaa  AAAAAAAAAAAA  AAAAAAAAAAAA
```
and some examples:
```shell
$ hledger reg                     # use terminal width (or 80 on windows)
$ hledger reg -w 100              # use width 100
$ COLUMNS=100 hledger reg         # set with one-time environment variable
$ export COLUMNS=100; hledger reg # set till session end (or window resize)
$ hledger reg -w 100,40           # set overall width 100, description width 40
$ hledger reg -w $COLUMNS,40      # use terminal width, & description width 40
```

This command also supports the
[output destination](hledger.html#output-destination) and
[output format](hledger.html#output-format) options
The output formats supported are
`txt`, `csv`, and (experimental) `json`.

