\H in PS1 adds the hostname without the domain to the prompt

[Sascha Gaspar]

   Configuration Information [Automatically generated, do not change]:
   Machine: x86_64
   OS: linux-gnu
   Compiler: x86_64-pc-linux-gnu-gcc
   Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64'
   -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-pc-linux-gnu'
   -DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash'
   -DSHELL -DHAVE_CONFIG_H   -I. -I./include -I. -I./include -I./lib
   -DDEFAULT_PATH_VALUE='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
   :/sbin:/bin' -DSTANDARD_UTILS_PATH='/bin:/usr/bin:/sbin:/usr/sbin'
   -DSYS_BASHRC='/etc/bash/bashrc'
   -DSYS_BASH_LOGOUT='/etc/bash/bash_logout'
   -DNON_INTERACTIVE_LOGIN_SHELLS -DSSH_SOURCE_BASHRC -march=core2 -O2
   -pipe
   uname output: Linux alpha 3.8.13-gentoo #2 SMP PREEMPT Sat May 25
   10:12:13 CEST 2013 x86_64 Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz
   GenuineIntel GNU/Linux
   Machine Type: x86_64-pc-linux-gnu

   Bash Version: 4.2
   Patch Level: 45
   Release Status: release

   Description:

   The \H in PS1 adds the hostname without the domain to the prompt.
   According to the man page \h outputs the hostname up to the first `.'
   and \H outputs the the hostname. I think that should be the FQDN?

   Repeat-By:
   # hostname
   myhostname
   # hostname -f
   myhostname.mydomainname
   # export PS1="\H $PS1"
   myhostname #