@c  -d, --display EXPR     display only postings matching EXPR

With @option{-d} you can decide which postings (or accounts in the
balance report) are displayed, according to a value expression.  The
computed total is not affected, only the display.  This can be very
useful for shortening a report without changing the running total:

@example
ledger -d 'd>=[last month]' reg checking
@end example

This command shows the checking account's register, beginning from
last month, but with the running total reflecting the entire history
of the account.