iacocca.sh

#!/bin/sh
#
# Stupid script that handles big Rails logs in search for activation emails queued on DelayedJobs.
# Like I said, stupid. No more than the bug that created the need to do this, but still.
#
# And nevermind the name. I decided to look the web for inspiration and got an article on Ford,
# Chrysler and Lee Iacocca. Thus, iacocca.sh.
#

echo "spliting log file in 30M tempfiles..."
split -b 30000000 $1

LOG_LIST=$(ls -1 x* | xargs)
USER_IDS=`pwd`/user_ids

for LOG in $LOG_LIST; do
  echo "processing: $LOG"
  grep -i delayed $LOG \
    | grep -i create \
    | grep -i activate \
    | awk '/AR\:User\:([0-9]*)/ {print $32}' | \
    sed 's/AR\:User\://' | sed 's/\\n\-//' >> $USER_IDS 
  echo "  done $LOG, moving on..."
done

echo "removing tempfiles"
rm -fr x*
echo
echo "Success! Total of $(wc -l $USER_IDS)"