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lang-bash
-ooptions but I thought they were options that were set-able to override the defaults i.e. to force behavior, rather than to query the actual situation. Am I wrong?[[ -o opt ]]checks ifoptis set. I can't see why it would do it only when the option is set some way and not the other..zshrcby setting theinteractiveoption?.zshrcis read on startup when the shell is interactive. It may be read by someone doingsource ~/.zshrc.loginoption in.zshrcwould cause all interactive shells started after this change to behave as though they were a result of a login, right? i.e. the behavior is forced - in truth they are not really login shells, and only behave as such because they have been told to be so by the authority of the option setting?