1 files changed, 10 insertions, 2 deletions
diff --git a/bin/comics/zits b/bin/comics/zits
index 8724116..579e745 100755
--- a/bin/comics/zits
+++ b/bin/comics/zits
@@ -1,7 +1,15 @@
 #!/bin/bash
 
-source $(pwd)/$(dirname $0)/../../etc/settings.sh
-tmp=$(mktemp -d)
+if [ -z "$1" -o ! -d "$1" ]; then
+    echo "Usage: $0 <top-directory> [<days ago>]" 1>&2
+    exit 1
+fi
+
+top="${1}"
+shift
+
+source "${top}/etc/settings.sh"
+tmp="$(mktemp -d)"
 cd "${tmp}"
 
 newn="${day}.gif"