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lang-bash
centos:5docker container, which has3.2.25(1), but not on acentos:6container, which has4.1.2(2). I'm betting this was a bug fixed with 4.0 or 4.1.$HISTIGNOREon the two machines? Does one of them include#*?HISTIGNORE="#*"and then ran#fooand pressing the UP button didn't bring it back. And it seems reasonable that it can't load something if it hasn't saved it. In any case, if it is indeed a bug in an old bash version, there's not much more to add.