2 files changed, 6 insertions, 0 deletions
diff --git a/README b/README
index 520f878..969d2f1 100644
--- a/README
+++ b/README
@@ -8,6 +8,7 @@ C source files are self-compiling, e.g. ./server.c.
     server.c       Maps torus.dat and listens on torus.sock.
     client.c       Curses client.
     help.c         Automated client which redraws a helpful banner.
+    snapshot.sh    Snapshots data file, appropriate for cron.
 
     chroot.sh      Creates chroot tarball.
     sshd_config    Anonymous login to chrooted client.
diff --git a/snapshot.sh b/snapshot.sh
new file mode 100755
index 0000000..2f15498
--- /dev/null
+++ b/snapshot.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+set -e -u
+
+ts=`date +'%Y.%m.%d.%H.%M'`
+gzip -c -9 < "$1/torus.dat" > "$2/torus.dat.$ts.gz"