# Str.tr("^a", "z")'

**URL:** <https://www.ruby-forum.com/t/str-tr-a-z/137238>\
**Category:** Development\
**Created:** [May 10, 2008, 3:41pm UTC](https://www.ruby-forum.com/t/str-tr-a-z/137238 "2008-05-10T15:41:42Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [May 10, 2008, 3:41pm UTC](https://www.ruby-forum.com/t/str-tr-a-z/137238/1 "2008-05-10T15:41:42Z")

</div>

str.tr("^a", “z”) e$B$H$7$?\>l9g$K!"e(Bstr e$B$,e(B “a” e$B$J$ie(B “z”  
e$B$K$J$k$Ne(B  
e$B$K!“e(B"aa” e$B$J$ie(B “aa”  
e$B$N$^$^$K$J$k$N$OJQ$G$O$J$$$G$7$g$&$+!#e(B

% ./ruby -ve ‘p “a”.tr("^a", “z”)’  
ruby 1.9.0 (2008-05-10 revision 16347) [i686-linux]  
“z”  
% ./ruby -ve ‘p “aa”.tr("^a", “z”)’  
ruby 1.9.0 (2008-05-10 revision 16347) [i686-linux]  
“aa”