$ DYLD_PRINT_LIBRARIES=YES /usr/local/bin/bash dyld[....]: ......... $ /usr/local/bin/bash dyld[....]: ......... $ /bin/bash The default interactive shell is now zsh. To update your account to use zsh, please run `chsh -s /bin/zsh`. For more details, please visit https://support.apple.com/kb/HT208050. $ /usr/local/bin/bash