How to invert all amounts

[odavy37]

Dear Sir or Madam,

I am using hledger for a long time now.

I figure out that I mistook myself: all amount are inverted.
How can I safely invert all amounts, rewriting my journals?
I did not succeed with linux text comand lines (awk, ...) since there are multiple cases (amount transactions, assertions, FIFO common stocks buy/sell).
Invert option is available for hledger print command, but not for register.

Would you please help me?

Regards,

Olivier

[odavy37]

Sorry, I should have written:

Invert option is available for hledger reg command, but not for print.