# Conversion from CSV to Ledger with in-field and out-field
rm -rf unused.journal$$ convert.rules$$; printf 'base-account Assets:MyAccount\ndate-field 0\ndate-format %%d/%%Y/%%m\ndescription-field 1\nin-field 2\nout-field 3\ncurrency $\n' >convert.rules$$ ; touch unused.journal$$ ; bin/hledger -f unused.journal$$ convert --rules convert.rules$$ - ; rm -rf *$$
<<<
10/2009/09,Flubber Co,50,
11/2009/09,Flubber Co,,50
>>>
2009/09/11 Flubber Co
    expenses:unknown           $50
    Assets:MyAccount          $-50

2009/09/10 Flubber Co
    income:unknown            $-50
    Assets:MyAccount           $50

>>>2 /using conversion rules file convert.rules[0-9]*.$/
>>>=0