#! /usr/bin/env bash
#
# Replace anything which looks like timestamps with XXXs (including the #start/end markers in logs).

# Get us "modern" regexps with sed.
if [ `uname` == "Linux" ]; then
   sed="sed -r"
else
   sed="sed -E"
fi

# The first sed uses a "basic" regexp, the 2nd a "modern:.
sed 's/[0-9]\{10\}\.[0-9]\{2,8\}/XXXXXXXXXX.XXXXXX/g' | \
$sed 's/^#(start|end).(19|20)..-..-..-..-..-..$/#\1 XXXX-XX-XX-XX-XX-XX/g'