# \[Bug #1031\] -U $B%\*%W%7%g%s$N@bL@$,(B --help $B$K$J$$(B

**URL:** <https://www.ruby-forum.com/t/bug-1031-u-b-w-7-g-s-n-bl-b-help-b-k-j-b/158267>\
**Category:** Development\
**Created:** [January 21, 2009, 11:02am UTC](https://www.ruby-forum.com/t/bug-1031-u-b-w-7-g-s-n-bl-b-help-b-k-j-b/158267 "2009-01-21T11:02:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Sakuro\_OZAWA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/aca169/32.png) [@Sakuro\_OZAWA](https://www.ruby-forum.com/u/Sakuro_OZAWA)\
**Post date:** [January 21, 2009, 11:02am UTC](https://www.ruby-forum.com/t/bug-1031-u-b-w-7-g-s-n-bl-b-help-b-k-j-b/158267/1 "2009-01-21T11:02:50Z")

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Bug #1031: -U e$B%\*%W%7%g%s$N@bL@$,e(B --help e$B$K$J$$e(B  
[http://redmine.ruby-lang.org/issues/show/1031](http://redmine.ruby-lang.org/issues/show/1031)

e$B5/I\<\<Te(B: Sakuro OZAWA  
e$B%9%F!\<%?%9e(B: Open, e$BM%@hEYe(B: Normal

irbe$B$N$[$&$Ke(B  
-U Same as `ruby -U`  
-U ruby -U e$B$HF1$8e(B.  
e$B$H$"$k0J\>e!“K\BN$K$b$”$k$Y$-e(B?

$ ruby19 --version  
ruby 1.9.1p0 (2009-01-20 revision 21700) [i386-darwin9.6.0]  
$ ruby19 --help  
Usage: ruby19 [switches] [–] [programfile] [arguments]  
  
-T[level] turn on tainting checks  
-v print version number, then turn on verbose mode