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If you have a typed metadata key which contains an amount, you can use
--inject=KEY to inject a posting with that amount wherever a match
occurs. There are two main forms of usage:
2010-06-18 Sample
; Key:: $100
Expenses:Food $100.00
Assets:Checking
The command would be:
ledger reg --inject=Key
In the above, transactional form, a posting under the account "Key" will
be injected before the first posting reported for this transaction.
It's amount will be $100. This only happens once for the whole
transaction.
It is also possible to associate the key with a posting:
2010-06-18 Sample
Expenses:Food $100.00
; Key:: $100
Assets:Checking
Now the injected posting is generated whenever that particular post is
reported.
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