macOS / binaries /

irb

/usr/bin/irb
Interactive Ruby shell

irb is the REPL(read-eval-print loop) environment for Ruby programs.

source: man
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/irb
Interactive Ruby Shell

irb is the REPL(read-eval-print loop) environment for Ruby programs.

The binary is a part of Ruby framework.

source: man