Checking balances and accounts

$ hledger register -f transfer.journal cash
2019/01/01 Bought 1 share @ ..  bank:cash                    £-100         £-100
2019/02/01 Bought 1 share @ ..  bank:cash                    £-300         £-400
2019/03/01 Bought 1 share @ ..  bank:cash                    £-300         £-700
2019/03/01 Sold my shares @ ..  bank:cash                     £600         £-100
2019/03/01 Bough my shares b..  bank:cash                    £-600         £-700


$ hledger register -f transfer.journal shares
2019/01/01 Bought 1 share @ ..  assets:shares                    1             1
2019/02/01 Bought 1 share @ ..  assets:shares                    1             2
2019/03/01 Bought 1 share @ ..  assets:shares                    1             3
2019/03/01 Sold my shares @ ..  assets:shares                   -3             0
2019/03/01 Bough my shares b..  assets:shares                    3             3

$ hledger balance -f transfer.journal
                   3  assets:shares
               £-700  bank:cash
--------------------
                   3
               £-700

Or same as a spreadsheet

$ hledger register -f transfer.journal  -O csv
"txnidx","date","code","description","account","amount","total"
"1","2019/01/01","","Bought 1 share @ £100","bank:cash","£-100","£-100"
"1","2019/01/01","","Bought 1 share @ £100","assets:shares","1","1, £-100"
"2","2019/02/01","","Bought 1 share @ £200","bank:cash","£-300","1, £-400"
"2","2019/02/01","","Bought 1 share @ £200","assets:shares","1","2, £-400"
"3","2019/03/01","","Bought 1 share @ £300","bank:cash","£-300","2, £-700"
"3","2019/03/01","","Bought 1 share @ £300","assets:shares","1","3, £-700"
"4","2019/03/01","","Sold my shares @ £200","bank:cash","£600","3, £-100"
"4","2019/03/01","","Sold my shares @ £200","assets:shares","-3","£-100"
"5","2019/03/01","","Bough my shares back @ £200","bank:cash","£-600","£-700"
"5","2019/03/01","","Bough my shares back @ £200","assets:shares","3","3, £-700"

transfer.journal

2019-01-01 Bought 1 share @ £100
  bank:cash  -£100
  assets:shares   1 @@ £100

2019-02-01 Bought 1 share @ £200
  bank:cash  -£300
  assets:shares   1 @@ £300

2019-03-01 Bought 1 share @ £300
  bank:cash  -£300
  assets:shares   1 @@ £300

;; Transfer through sale at £200 per share
2019-03-01 Sold my shares @ £200
  bank:cash  £600
  assets:shares   -3 @ £200

2019-03-01 Bough my shares back @ £200
  bank:cash  -£600
  assets:shares   3 @ £200