--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rc/shellinit-posix	Mon Sep 15 14:46:50 2014 +0900
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+_os="$(uname)"
+
+export LANG="en_US.UTF-8"
+export LC_CTYPE="en_US.UTF-8"
+# The en_US.UTF-8 causes weird sorting.
+# (not really, but I prefer C based sort.)
+export LC_COLLATE=C
+export LC_MESSAGES=C
+
+if command -v tmux > /dev/null 2>&1; then
+  case "${_os}" in
+  OpenBSD)
+    # FIXME: OpenBSD version check
+    _tmux_conf_ver=1.9
+  ;;
+  *)
+    case "$(tmux -V 2> /dev/null)" in
+    "tmux 1."[1-9][0-9]*|"tmux 1.9"*) _tmux_conf_ver=1.9;;
+    "tmux 1."[4-8]*) _tmux_conf_ver=1.4;;
+    *) _tmux_conf_ver=1.3;;
+    esac
+  ;;
+  esac
+  alias tmux="tmux -f '""${HOME}""/.tmux-""${_tmux_conf_ver}"".conf'"
+  unset _tmux_conf_ver
+fi
+
+if command -v vim > /dev/null 2>&1; then
+  alias vi=vim
+  export EDITOR=vim
+fi
+
+if command -v less > /dev/null 2>&1; then
+  export PAGER=less
+  export LESS=-FMRXginsz-2
+fi
+
+unset _os