fix script path incantation

data/cifar10/get_cifar10.sh

 #!/usr/bin/env sh
 # This scripts downloads the CIFAR10 (binary version) data and unzips it.
 
-DIR="$(readlink -f $(dirname "$0"))"
+DIR="$( cd "$(dirname "$0")" ; pwd -P )"
 cd $DIR
 
 echo "Downloading..."

data/ilsvrc12/get_ilsvrc_aux.sh

@@ -6,7 +6,7 @@
 # - synset ids and words
 # - the training splits with labels
 
-DIR="$(readlink -f $(dirname "$0"))"
+DIR="$( cd "$(dirname "$0")" ; pwd -P )"
 cd $DIR
 
 echo "Downloading..."

data/mnist/get_mnist.sh

 #!/usr/bin/env sh
 # This scripts downloads the mnist data and unzips it.
 
-DIR="$(readlink -f $(dirname "$0"))"
+DIR="$( cd "$(dirname "$0")" ; pwd -P )"
 cd $DIR
 
 echo "Downloading..."

scripts/build_and_deploy_docs.sh

@@ -15,7 +15,7 @@ MSG=`git log --oneline -1`
 
 if [[ $BRANCH = 'master' ]]; then
     # Find the docs dir, no matter where the script is called
-    DIR="$(readlink -f $(dirname "$0"))"
+    DIR="$( cd "$(dirname "$0")" ; pwd -P )"
     DOCS_SITE_DIR=$DIR/../docs/_site
 
     # Make sure that docs/_site tracks remote:gh-pages.

tools/extra/parse_log.sh

 #!/bin/bash
-# Usage parse_log.sh caffe.log 
+# Usage parse_log.sh caffe.log
 # It creates two files one caffe.log.test that contains the loss and test accuracy of the test and
 # another one caffe.log.loss that contains the loss computed during the training
 
-#get the dirname of the script
-DIR="$(readlink -f $(dirname "$0"))"
+# get the dirname of the script
+DIR="$( cd "$(dirname "$0")" ; pwd -P )"
 
 if [ "$#" -lt 1 ]
 then