Ledger 3.0.0 Description:
Ledger is a powerful, double-entry accounting system that is accessed from the UNIX command-line. This may put off some users, as there is no flashy UI, but for those who want unparalleled reporting access to their data, there really is no alternative. The amount of data required by Ledger is minimal. It figures out from looking at your data what you mean by it and how you want it reported back to you. Accounts are created as they appear; currencies are created as they're referenced. Anywhere that a value can be calculated, you can leave it out - such as the balancing $-10.00 in the above entry.