Merge pull request #700 from BadSugar/ubuntu_fix_gef_sh

gef.sh is now works on Ubuntu 21.04 (Hirsute Hippo) #699

scripts/gef.sh

@@ -3,16 +3,39 @@
 set -e
 
 branch="master"
-test "$1" == "dev" && branch="dev"
+if [ "$1" = "dev" ]; then
+    branch="dev"
+    echo "set branch to dev"
+fi
+
+# check dependencies
+if [ `which curl` ]; then
+	curl_found=1
+elif [ `which wget` ]; then
+	wget_found=1
+else
+	echo "Please install cURL or wget and run again"
+	exit 1
+fi
 
 # Backup gdbinit if any
-test -f "${HOME}/.gdbinit" && mv "${HOME}/.gdbinit" "${HOME}/.gdbinit.old"
+if [ -f "${HOME}/.gdbinit" ]; then
+    mv "${HOME}/.gdbinit" "${HOME}/.gdbinit.old"
+fi
+
+if [ $wget_found -eq 1 ]; then
+    # Get the hash of the commit
+    ref=$(wget -q -O- https://api.github.com/repos/hugsy/gef/git/ref/heads/${branch} | grep '"sha"' | tr -s ' ' | cut -d ' ' -f 3 | tr -d "," | tr -d '"')
 
-# Get the hash of the commit
-ref=$(curl --silent https://api.github.com/repos/hugsy/gef/git/ref/heads/${branch} | grep '"sha"' | tr -s ' ' | cut -d ' ' -f 3 | tr -d "," | tr -d '"')
+    # Download the file
+    wget -q "https://github.com/hugsy/gef/raw/${branch}/gef.py" -O "${HOME}/.gef-${ref}.py"
+elif [ $curl_found -eq 1 ]; then
+    # Get the hash of the commit
+    ref=$(curl --silent https://api.github.com/repos/hugsy/gef/git/ref/heads/${branch} | grep '"sha"' | tr -s ' ' | cut -d ' ' -f 3 | tr -d "," | tr -d '"')
 
-# Download the file
-curl --silent --location --output "${HOME}/.gef-${ref}.py" "https://github.com/hugsy/gef/raw/${branch}/gef.py"
+    # Download the file
+    curl --silent --location --output "${HOME}/.gef-${ref}.py" "https://github.com/hugsy/gef/raw/${branch}/gef.py"
+fi
 
 # Create the new gdbinit
 echo "source ~/.gef-${ref}.py" > ~/.gdbinit