Add alexa test run script.

.gitignore

@@ -32,3 +32,5 @@ Changelog.linkchecker*
 /LinkChecker-*.exe
 /LinkChecker.egg-info
 /todo
+/alexa*.log
+

tests/run_alexa_1m.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+# Run the top 1 million URLs as reported by alexa site monitoring.
+# The logfile should be searched for internal errors first, then
+# all unusual errors and warnings should be inspected.
+#
+# Note that the result is usually depending on the current location
+# from where the tests are run.
+set -u
+logfile=alexa_1m.log
+rm -f $logfile
+for url in $(cat $HOME/src/alexatopsites/top-1m.txt); do
+  ./linkchecker -r1 $url >> $logfile 2>&1
+done
+