On 11/13/2013 04:42 AM, Albert Schlef wrote:
> The way to lint a script (that is, to only check its syntax) is to do
> "ruby -c".
>
> But I see in several places[1][2] on the net that people use "ruby -wc".
>
> I always thought "-w" was for run-time warnings, not for compile-time
> ones.
>
> Can anybody give me an example for a Ruby code for which "ruby -wc"
> gives different output than "ruby -c"?
>
>
> [1]
> https://github.com/SublimeLinter/SublimeLinter/blob/master/sublimelinter/modules/ruby.py
> [2]
> http://stackoverflow.com/questions/1302595/ruby-syntax-checking-in-vim/17246442#17246442
>


$ cat test.rb
x = 1
$ ruby -c test.rb
Syntax OK
$ ruby -w -c test.rb
test.rb:1: warning: assigned but unused variable - x
Syntax OK
$ ruby -v
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux]