日志切割脚本

# 日志切割脚本

脚本如下

注：安装zip命令

#!/bin/bash
loglist=`ls -l /data/applications/*.log |awk -F '/' '{print $NF}'`
logdate=`date "+%Y%m%d"`
for logname in $loglist
  do
  zip -r /data/applications/logs/"$logname"-"$logdate".zip /data/applications/$logname
  echo "" > /data/applications/$logname
done
find /data/applications/logs/* -mtime +60 -exec rm {} \;

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# 加强版脚本

功能如下

按大小切割
按时间切割
自动压缩
自动清理
crontab定时

#!/bin/bash
# =========================================================
# 日志轮转与清理脚本
# 功能：
#  - 按大小/时间切割日志
#  - 历史日志自动压缩
#  - 超期 & 超量自动清理
# =========================================================

set -euo pipefail

# ---------------- 基础配置 ----------------
LOG_FILES=(
"/opt/apps/lightpicture/nginx.log/access.log"
"/opt/apps/lightpicture/nginx.log/error.log"
)

ROTATE_MODE="size"            # size | time
MAX_SIZE="10M"
ROTATE_INTERVAL="daily"      # daily | weekly | monthly
MAX_BACKUP_COUNT=30
COMPRESS_ENABLE=true
COMPRESS_TYPE="gzip"         # gzip | bzip2
EXPIRE_DAYS=7
SCRIPT_LOG="/opt/apps/script_log/log_rotate_script.log"

# ---------------- 日志函数 ----------------
log() {
    local level=$1
    local msg=$2
    local ts
    ts=$(date "+%F %T")
    echo "[$ts] [$level] $msg" | tee -a "$SCRIPT_LOG"
}

# ---------------- 工具函数 ----------------
size_to_bytes() {
    local s=$1
    local num unit
    num=$(echo "$s" | grep -oE '^[0-9]+')
    unit=$(echo "$s" | grep -oE '[KMG]$' || true)

    case "$unit" in
        K) echo $((num * 1024)) ;;
        M) echo $((num * 1024 * 1024)) ;;
        G) echo $((num * 1024 * 1024 * 1024)) ;;
        *) echo"$num" ;;
    esac
}

signal_process() {
    local logfile=$1
    local proc
    proc=$(basename "${logfile%.log}")
    pgrep -f "$proc" | xargs -r kill -USR1 || true
}

compress_file() {
    local f=$1
    case "$COMPRESS_TYPE" in
        gzip) gzip "$f" ;;
        bzip2) bzip2 "$f" ;;
        *) log WARN "不支持压缩格式 $COMPRESS_TYPE" ;;
    esac
}

# ---------------- 清理逻辑 ----------------
clean_expire_logs() {
    local logfile=$1
    local dir base
    dir=$(dirname "$logfile")
    base=$(basename "$logfile")

    find "$dir" -maxdepth 1 -name "$base.*" -type f -mtime +"$EXPIRE_DAYS" -delete
    log INFO "已清理 $EXPIRE_DAYS 天前日志: $base"
}

clean_count_logs() {
    local logfile=$1
    local dir base
    dir=$(dirname "$logfile")
    base=$(basename "$logfile")

    ls -t "$dir/$base".* 2>/dev/null | tail -n +$((MAX_BACKUP_COUNT + 1)) | xargs -r rm -f
    log INFO "已限制 $base 历史日志数量 <= $MAX_BACKUP_COUNT"
}

# ---------------- 按大小轮转 ----------------
rotate_by_size() {
    local logfile=$1
    [ -f "$logfile" ] || { log WARN "$logfile 不存在"; return; }

    local max current
    max=$(size_to_bytes "$MAX_SIZE")
    current=$(stat -c %s "$logfile")

    if [ "$current" -lt "$max" ]; then
        log INFO "$logfile 未达阈值，跳过"
        return
    fi

    local ts backup
    ts=$(date +%Y%m%d%H%M%S)
    backup="${logfile}.${ts}"

    mv "$logfile" "$backup"
    signal_process "$logfile"

    log INFO "切割完成: $backup"

    $COMPRESS_ENABLE && compress_file "$backup"
    clean_expire_logs "$logfile"
    clean_count_logs "$logfile"
}

# ---------------- 按时间轮转 ----------------
rotate_by_time() {
    local logfile=$1
    [ -f "$logfile" ] || { log WARN "$logfile 不存在"; return; }

    case "$ROTATE_INTERVAL" in
        daily)   ts=$(date +%Y%m%d) ;;
        weekly)  ts=$(date +%Y%U) ;;
        monthly) ts=$(date +%Y%m) ;;
        *) log ERROR "非法周期"; exit 1 ;;
    esac

    local backup="${logfile}.${ts}"
    [ -f "$backup" ] || [ -f "$backup.$COMPRESS_TYPE" ] && {
        log INFO "已切割，跳过"
        return
    }

    mv "$logfile" "$backup"
    signal_process "$logfile"
    log INFO "时间切割完成: $backup"

    $COMPRESS_ENABLE && compress_file "$backup"
    clean_expire_logs "$logfile"
    clean_count_logs "$logfile"
}

# ---------------- 主入口 ----------------
log INFO "日志轮转开始 mode=$ROTATE_MODE"

for f in "${LOG_FILES[@]}"; do
    case "$ROTATE_MODE" in
        size) rotate_by_size "$f" ;;
        time) rotate_by_time "$f" ;;
        *) log ERROR "未知模式 $ROTATE_MODE"; exit 1 ;;
    esac
done

log INFO "日志轮转结束"

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# php日志压缩

#!/bin/bash
LOG_DIR="/opt/apps/get_docker/get_web_php_server/php.log"
DATE=$(date -d "yesterday" +"%Y-%m-%d")
cd $LOG_DIR

#压缩php日志
tar -zcf fpm-fcgi-laravel-$DATE.tar.gz fpm-fcgi-laravel-$DATE.log
#删除原始日志文件
rm -rf fpm-fcgi-laravel-$DATE.log

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上次更新: 2026/01/20, 13:59:30

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