psql_log.sh

for i in `seq $1 $2`; do
  LOG_FILE="postgresql-8.3-main.log.$i"
  GZIP=false
  if [ ! -f $LOG_FILE ]; then
    LOG_FILE=$LOG_FILE.gz
    GZIP=true
    if [ ! -f $LOG_FILE ]; then
      echo "***ERR: No $LOG_FILE found."
      exit 2
    fi
  fi
  echo "Searching in $LOG_FILE...";
  CMD="pv $LOG_FILE"
  if [ $GZIP == true ]; then
    CMD="$CMD | gzip -d"
  fi
  CMD="$CMD | grep -H $3"
  eval $CMD
done