====== AIX locale (environment) ======

If you need to install UTF8, then install the related package

Install bos.loc.utf.* packages for your locale. E.g.:
<cli prompt='#'>
#lslpp -L bos.loc.utf.*
  Fileset                      Level  State  Type  Description (Uninstaller)
  ----------------------------------------------------------------------------
  bos.loc.utf.EN_US          7.3.2.0    C     F    Base System Locale UTF Code
                                                   Set - U. S. English 
</cli>

Then you will get UTF-8 locale in the output of locale -a:
<cli prompt='#'>
#locale -a
C
POSIX
EN_US.UTF-8
EN_US
en_US.8859-15
en_US.IBM-858
en_US.ISO8859-1
en_US.UTF-8
en_US
</cli>

For info **tmux** requires **UTF8**, else you got the following message
<code>
tmux: need UTF-8 locale (LC_CTYPE) but have ISO8859-1
</code>