From 08d02b5bf6d6d2e8eff1e2dcf5164ad87147aad3 Mon Sep 17 00:00:00 2001
From: christos <chrishadjiaslanis@gmail.com>
Date: Fri, 27 Mar 2020 13:05:02 +0000
Subject: [PATCH] Fixed download.sh logic for multiple arguments. Removed
 Readme section about executing script from anywhere. Updated the parsing of
 URLs to be more specific.

---
 scripts/README.md   | 2 --
 scripts/download.sh | 4 ++--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/scripts/README.md b/scripts/README.md
index d2d8d3e..bb4e7e5 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -20,5 +20,3 @@ Optionally, to download specific topics specify their directories as arguments:
 ```bash
 $ ./scripts/download.sh android concurrency
 ```
-
-This can be run from anywhere as long as the script doesn't change location
\ No newline at end of file
diff --git a/scripts/download.sh b/scripts/download.sh
index ebcc26f..d5139d4 100755
--- a/scripts/download.sh
+++ b/scripts/download.sh
@@ -16,7 +16,7 @@ download_for_directory() {
     done
 
     # Scrape URLs from markdown files
-    urls=$(ls | cat *.md 2> /dev/null | egrep -o 'https?://[^ ]+' | grep 'pdf' | tr -d ')')
+    urls=$(ls | cat *.md 2> /dev/null | egrep -o 'https?://[^ ]+' | grep '\.pdf' | tr -d ')')
 
     for url in "$urls"; do
         # Ignore empty URLs
@@ -30,7 +30,7 @@ download_for_directory() {
 }
 
 # If no directories are supplied, iterate over the entire repo.
-if [[ "$#" -ne 1 ]]; then
+if [[ "$#" -eq 0 ]]; then
     REPO_ROOT_DIR="$(dirname $0)/.."
     download_for_directory ${REPO_ROOT_DIR}
 else