From b8393252dbf97b432c083139617ccad42e411193 Mon Sep 17 00:00:00 2001
From: Reto Haeberli <reto.haeberli@comnode.net>
Date: Tue, 8 Sep 2015 19:40:07 +0200
Subject: [PATCH] ls alias differentiation Linux, OS X, OS X with coreutils ls

---
 aliases/available/general.aliases.bash | 54 +++++++++++++++++++-------
 1 file changed, 40 insertions(+), 14 deletions(-)

diff --git a/aliases/available/general.aliases.bash b/aliases/available/general.aliases.bash
index 03155058..1fec85b0 100644
--- a/aliases/available/general.aliases.bash
+++ b/aliases/available/general.aliases.bash
@@ -2,26 +2,52 @@ cite about-alias
 about-alias 'general aliases'
 
 # List directory contents
-# Source: http://tldp.org/LDP/abs/html/sample-bashrc.html
+# Alias source: http://tldp.org/LDP/abs/html/sample-bashrc.html
+
+local LS_COLOR_OPTION
+
+case "$OSTYPE" in
+  linux*)
+    # Set Linux color option
+    LS_COLOR_OPTION="--color=auto"
+    ;;
+    darwin*)
+    # Set BSD color optio
+    LS_COLOR_OPTION="-G"
+    #Check if coreutils version of if exists
+    if [[ -x "/usr/local/opt/coreutils/libexec/gnubin/ls" ]]; then
+      # Check if coreutils path is in $PATH
+      if [[ ":$PATH:" == *":/usr/local/opt/coreutils/libexec/gnubin:"* ]]; then
+        # Set Linux color option
+        LS_COLOR_OPTION="--color"
+      fi
+    fi
+    ;;
+  *)
+    # Use Linux color option as fallback
+    LS_COLOR_OPTION="--color=auto"
+    ;;
+esac
+
 
 # # Add colors for filetype and  human-readable sizes by default on 'ls':
-alias l='ls -a --color'            # Standard
-alias lx='ls -lXB --color'         # Sort by extension.
-alias lk='ls -lSr --color'         # Sort by size, biggest last.
-alias lt='ls -ltr --color'         # Sort by date, most recent last.
-alias lc='ls -ltcr --color'        # Sort by/show change time,most recent last.
-alias lu='ls -ltur --color'        # Sort by/show access time,most recent last.
+alias l="ls -a $LS_COLOR_OPTION"            # Standard
+alias lx="ls -lXB $LS_COLOR_OPTION"         # Sort by extension.
+alias lk="ls -lSr $LS_COLOR_OPTION"         # Sort by size, biggest last.
+alias lt="ls -ltr $LS_COLOR_OPTION"         # Sort by date, most recent last.
+alias lc="ls -ltcr $LS_COLOR_OPTION"        # Sort by/show change time,most recent last.
+alias lu="ls -ltur $LS_COLOR_OPTION"        # Sort by/show access time,most recent last.
 
 # # The ubiquitous 'll': directories first, with alphanumeric sorting:
-alias ll="ls -lv --group-directories-first --color"
-alias lm='ll |more'                # Pipe through 'more'
-alias lr='ll -R'                   # Recursive ls.
-alias la='ll -A'                   # Show hidden files.
+alias ll="ls -lv --group-directories-first $LS_COLOR_OPTION"
+alias lm="ll |more"                # Pipe through "more"
+alias lr="ll -R"                   # Recursive ls.
+alias la="ll -A"                   # Show hidden files.
 
-alias tree='tree -C'               # Nice alternative to 'recursive ls' ...
+alias tree="tree -C"               # Nice alternative to "recursive ls" ...
 
-alias sl='ls'
-alias l1='ls -1 --group-directories-first --color'
+alias sl="ls"
+alias l1="ls -1 --group-directories-first $LS_COLOR_OPTION"
 
 
 alias _="sudo"