rm-var-log-unwanted-danger

#!/bin/bash
set -euf -o pipefail

##
# Remove /var/log files that we don't want.
#
# We use this to clean up drive space.
#
# Remove log rotation files:
#
#   * Compressed files: these end in .bz2, .bzip, .gz, .tgz, .zip.
#   * Sequence files: these end in .1, .2, .3, etc.
#
# Remove Unix system upgrade logs:
#
#   * dist-upgrade/*
#   * unattended-upgrades/unattended-upgrades-dpkg_*.log
#
# Remove specific programs' logs:
#
#   * nagios3/archives/*
#   * samba/log*
#
# Remove macOS logs:
#
#   * asl/Logs/*
#   * DiagnosticMessages/*.asl
#   * powermanagement/*.asl
#
# Compatibility:
#
#   * We prefer to be more compatible rather than system-specific.
#
#   * To delete files, we prefer `-exec rm` vs. `-delete`.
#     The former is more compatible, the latter is faster.
#
#   * To regex, we prefer patterns to be basic vs. extended.
#     The former is more compatible, the latter is more modern.
#
# Tracking:
#
#   * Command: rm-log-files-danger
#   * Version: 1.5.0
#   * Created: 2013-12-09
#   * Updated: 2017-08-29
#   * License: GPL
#   * Contact: Joel Parker Henderson (joel@joelparkerhenderson.com)
##

dir=/var/log
find $dir \( -name "*.bz2" -o -name "*.bzip" -o -name "*.gz" -o -name "*.tgz" -o -name "*.zip" -o -regex ".*\.[0123456789][0123456789]*" \) -exec rm {} \;

## Unix system upgrades
rm -rf $dir/dist-upgrade/*
rm -rf $dir/unattended-upgrades/unattended-upgrades-dpkg_*.log

## Specific programes
rm -rf $dir/log/samba/log*
rm -rf $dir/log/nagios3/archives/*

## macOS
rm -rf $dir/asl/Logs/*
rm -rf $dir/DiagnosticMessages/*.asl
rm -rf $dir/powermanagement/*.asl