Merge remote-tracking branch 'origin/github/pr/55'

etc/zsh/zshrc

@@ -431,11 +431,22 @@ ZSH_NO_DEFAULT_LOCALE=${ZSH_NO_DEFAULT_LOCALE:-0}
 
 typeset -ga ls_options
 typeset -ga grep_options
+
+# Colors on GNU ls(1)
 if ls --color=auto / >/dev/null 2>&1; then
     ls_options+=( --color=auto )
+# Colors on FreeBSD and OSX ls(1)
 elif ls -G / >/dev/null 2>&1; then
     ls_options+=( -G )
 fi
+
+# Natural sorting order on GNU ls(1)
+# OSX and IllumOS have a -v option that is not natural sorting
+if ls --version |& grep -q 'GNU' >/dev/null 2>&1 && ls -v / >/dev/null 2>&1; then
+    ls_options+=( -v )
+fi
+
+# Color on GNU and FreeBSD grep(1)
 if grep --color=auto -q "a" <<< "a" >/dev/null 2>&1; then
     grep_options+=( --color=auto )
 fi