I see about the second argument now

Just to be clear, the second argument is not for implementing a command history; it's for prompting with some default input as, for example, in install/configure scripts 

...
In which directory would you like the package to be installed?
> /usr/local/foo

[download]

where the editable input "/usr/local/foo" would appear at the prompt immediately, as a suggested default choice, without the user having to hit any cursor up/down keys etc.  Implementing a history via that feature would be quite cumbersome, as you'd have to read out the respective history entries yourself and present a new prompt for each entry...

With GNU readline the history is basic functionality, which should work without further ado, if you have the right backend module installed.

In reply to Re^4: Simulating Command Line History in Perl by almut
in thread Simulating Command Line History in Perl by Only1KW

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