diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ba31760
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+pirate-get-*
diff --git a/install.sh b/install.sh
index e8becba..ed31e16 100755
--- a/install.sh
+++ b/install.sh
@@ -1,22 +1,24 @@
 #!/usr/bin/env sh
+
 if [ "$UID" -ne 0 ]
   then echo "Please run as root"
   exit
 fi
 
-TMP=`mktemp pirate-get-XXX`
-if [ `which python2.7` ]
+TMP=$(mktemp pirate-get-XXX)
+if [ $(which python2.7) ]
 then
-    echo "#!/usr/bin/env python2.7" > $TMP
+    echo "#!/usr/bin/env python2.7" > "$TMP"
 elif [ `which python2` ]
 then
-    echo "#!/usr/bin/env python2" > $TMP
+    echo "#!/usr/bin/env python2" > "$TMP"
 else
-    echo "#!/usr/bin/env python" > $TMP
+    echo "#!/usr/bin/env python" > "$TMP"
 fi
 
-sed 1d `dirname $0`/pirate-get.py >> $TMP
+sed 1d $(dirname $0)/pirate-get.py >> "$TMP"
 
-cp $TMP /usr/bin/pirate-get
+cp "$TMP" /usr/bin/pirate-get
 chmod +x /usr/bin/pirate-get
 chmod 755 /usr/bin/pirate-get
+rm "$TMP"