small fixes

scan

@@ -1,9 +1,15 @@
 #!/usr/bin/env bash
 
-export DIR="$(dirname -- "$0")"
-config="$1"
+if [ "$#" -ne 1 ]; then
+    echo "Usage: ./scan <config>"  >&2
+    exit 1
+fi
 
-site="$(basename ${config/.yaml/})"
-php to_XML.php "$config" > "$DIR/site/$site.xml"
-xsltproc nmap_cmd.xsl "$DIR/site/$site.xml" | sh
-mv "$DIR/scans/$site.xml.tmp" "$DIR/scans/$site.xml"
+pushd "$(dirname -- "$0")" > /dev/null
+site="$(basename ${1/.yaml/})"
+
+php "to_XML.php" "configs/$site.yaml" > "site/$site.xml"
+eval $(xsltproc "nmap_cmd.xsl" "site/$site.xml")
+mv "scans/$site.xml.tmp" "scans/$site.xml"
+
+popd  > /dev/null