gistfile1.sh

#!/bin/bash

# Convert gzipped haproxy files to use date extensions
for f in $(ls haproxy*.gz | grep -v 2013)
do
    dest="${f%.*.gz}-"$(gunzip -c $f | head -n 1 | awk '{ print $1 }' | cut -d T -f 1 | tr --delete '-')".gz"
    mv "$f" "$dest"
done

# Convert and gzip the delayed files
for f in haproxy_*.1
do
    dest="${f%.1}-$(head $f -n 1 | awk '{ print $1 }' | cut -d T -f 1 | tr --delete '-')"
    mv "$f" "$dest"
    gzip "$dest"
done