Azure VM Deprovisioning 中身を確認して使ってください。

azure-log-del.sh

#!/usr/bin/env bash

# ログ削除
\rm /var/log/*-2013*

for i in /var/log/*log; do cat /dev/null > $i ;done
for i in /var/log/httpd/*; do cat /dev/null > $i ;done
for i in /var/log/audit/*; do cat /dev/null > $i ;done

cat /dev/null > /var/log/secure
cat /dev/null > /var/log/dmesg
cat /dev/null > /var/log/btmp
cat /dev/null > /var/log/wtmp
cat /dev/null > /var/log/spooler
cat /dev/null > /var/log/cron
cat /dev/null > /var/log/messages
cat /dev/null > /var/log/dmesg.old

# ヒストリー削除
cat /dev/null > /root/.bash_history
cat /dev/null > /home/azureuser/.bash_history