$ echo abשלום | tr ו a
abaaaaa
$ echo abשלום | tr ו c
abccccc
$ echo abשלום | sed -e 's/ו/c/'
abשלcם
$ echo abשלום | sed -e 'y/ו/c/'
abשלcם
$ echo abשלום | perl -p -e 'y/ו/c/'
abccccc
$ echo abשלום | perl -p -e 'tr/ו/c/'
abccccc
$ echo abשלום | perl -p -e 's/ו/c/'
abשלcם
$ sed --version
GNU sed version 4.1.5
Copyright (C) 2003 Free Software Foundation, Inc.
הוולמ הניא תינכתה .רוקמה יצבק תא האר ,טוריפ רתיל ;תישפח הנכת הניה וז תינכת
הדימב תאזו ,איהש תילכת וזיאל המאתה וא תוריחס םשל אל וליפא ;תוירחא בתכב
.תאז רשפאמ קוחהש
$ tr --version
tr (GNU coreutils) 6.10
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Jim Meyering.
$ perl --version
This is perl, v5.10.0 built for x86_64-linux-gnu-thread-multi
Copyright 1987-2007, Larry Wall
Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.
Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl". If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.
ii coreutils 6.10-6 The GNU core utilities
ii perl 5.10.0-19 Larry Wall's Practical Extraction and Report
ii sed 4.1.5-6 The GNU sed stream editor