If "most" is +x then set most as PAGER, or use less as PAGER

.bashrc

@@ -27,9 +27,15 @@ complete -c -o default -o nospace sudo
 export EDITOR="vim"
 export GIT_PAGER="less"
 export LESS="-EfmrSwX"
-export PAGER="most"
+export LSCOLORS="gxfxcxdxbxegedabagacad"
 export PERL_CPANM_OPT="--mirror http://cpan.nctu.edu.tw/ --mirror http://cpan.cpantesters.org/"
 #
+if [ -x most ]; then
+    export PAGER="most"
+else
+    export PAGER="less"
+fi
+#
 shopt -s checkwinsize
 shopt -s histappend
 #