Mateusz Suski
98 lines
2.6 KiB
Bash
Executable File
98 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -o errexit
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set -o nounset
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set -o pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck source=00_env.sh
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. "$SCRIPT_DIR/00_env.sh"
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EXECUTE=false
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LOG_PATH="/var/log"
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DAYS_OLD=14
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usage() {
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printf 'Usage: %s [--path <path>] [--days-old <N>] [--execute]\n' "$(basename "$0")"
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}
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while [[ "$#" -gt 0 ]]; do
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case "$1" in
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--path) LOG_PATH="${2:-}"; shift 2 ;;
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--days-old) DAYS_OLD="${2:-}"; shift 2 ;;
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--execute) EXECUTE=true; DRY_RUN=false; shift ;;
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-h|--help) usage; exit 0 ;;
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*) critical "Unknown argument: $1"; usage; exit 2 ;;
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esac
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done
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if ! [[ "$DAYS_OLD" =~ ^[0-9]+$ ]] || (( DAYS_OLD < 1 )); then
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critical "--days-old must be a positive integer"
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exit 2
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fi
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validate_path "$LOG_PATH" || exit 2
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require_cmd find || exit 1
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require_cmd sort || exit 1
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require_cmd xargs || true
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section "Large Log Files In $LOG_PATH"
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find "$LOG_PATH" -xdev -type f \( -name '*.log' -o -name '*log' -o -name 'messages*' -o -name 'syslog*' \) -size +100M -printf '%s\t%p\n' 2>/dev/null |
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sort -rn |
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awk '
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function human(bytes) {
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split("B KB MB GB TB", unit)
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size = bytes
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idx = 1
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while (size >= 1024 && idx < 5) {
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size = size / 1024
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idx++
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}
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return sprintf("%.1f%s", size, unit[idx])
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}
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{ size = $1; $1 = ""; sub(/^\t/, ""); printf "%10s %s\n", human(size), $0 }
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' | tee -a "$LOG_FILE"
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section "Old Rotated Logs Eligible For Review"
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mapfile -t rotated_logs < <(
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find "$LOG_PATH" -xdev -type f \
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\( -name '*.gz' -o -name '*.1' -o -name '*.old' -o -name '*.bz2' -o -name '*.xz' \) \
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-mtime +"$DAYS_OLD" -print 2>/dev/null | sort
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)
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if [[ "${#rotated_logs[@]}" -eq 0 ]]; then
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ok "No old rotated logs found under $LOG_PATH with age greater than $DAYS_OLD days."
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else
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printf '%s\n' "${rotated_logs[@]}" | tee -a "$LOG_FILE"
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fi
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section "Suggested Cleanup Commands"
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cat <<SUGGESTIONS | tee -a "$LOG_FILE"
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# Review large active logs before truncating. Prefer application-aware log rotation:
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logrotate -d /etc/logrotate.conf
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# Remove old rotated logs only after retention approval:
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$(basename "$0") --path "$LOG_PATH" --days-old "$DAYS_OLD" --execute
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SUGGESTIONS
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if [[ "$EXECUTE" != "true" ]]; then
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ok "Safe mode. No logs were removed."
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exit 0
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fi
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if [[ "${#rotated_logs[@]}" -eq 0 ]]; then
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ok "Execution requested, but there are no eligible old rotated logs to remove."
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exit 0
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fi
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confirm_execute "remove old rotated logs from $LOG_PATH"
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for file in "${rotated_logs[@]}"; do
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if [[ -f "$file" && ! -L "$file" ]]; then
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run_cmd rm -f -- "$file"
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else
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warning "Skipped non-regular file or symlink: $file"
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fi
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done
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ok "Old rotated log cleanup completed."
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