Question

i am learning ruby lately.
there is a rake.bat in the bin directory of ruby.
i find a line of code @"ruby.exe" "%~dpn0" %* in it.
why do they add @ before “ruby.exe”.
is this a special way to turn off the command-echoing feature in a bat file?

Answer 1

Yep! Putting @ before a command suppresses echoing the command. If you want to do it globally, put @echo off at the top of the batch file. echo off disables command echoing, and the @ keeps the echo off command itself from being echoed.