Shell builtins are commands that are loaded into memory when a shell — such as bash, sh, or zsh — is invoked. The reason for this is that keeping these commands in memory helps ensure that these ...
I have two Macs, both with BASH being the default shell. Mac1 has a tricked-out .bashrc. Mac2 just got a clean OS upgrade, so pretty much everything is stock from Apple. Since file xfer between the ...