切割tomcat日志 bat脚本

下面是一个基本的切割Tomcat日志的batch脚本：

@echo off
setlocal enabledelayedexpansion

set "logdir=C:\Tomcat\logs"
set "logname=catalina"
set "logext=.log"
set "maxsize=50000000"

pushd "%logdir%"

for /f "tokens=1-3 delims=: " %%a in ('time /t') do (
    set "hour=%%a"
    set "minute=%%b"
    set "second=%%c"
)

set "timestamp=!hour!-!minute!-!second!"

set "logfile=%logname%_%timestamp%%logext%"

if not exist "%logfile%" (
    copy "%logname%%logext%" "%logfile%"
    type nul > "%logname%%logext%"
)

for /f "usebackq tokens=1,2 delims==" %%a in (`wmic OS Get localdatetime /value`) do (
    if '.%%a'=='.LocalDateTime' (
        set "datetime=%%b"
        set "date=!datetime:~0,4!-!datetime:~4,2!-!datetime:~6,2!"
    )
)

for %%f in ("%logname%_*%logext%") do (
    if %%~zf GTR %maxsize% (
        set "num=%%~nf"
        set "num=!num:*_=!"
        set /a "num+=1"
        set "newname=%logname%_!date!_!num!%logext%"
        ren "%%~ff" "!newname!"
        copy "%logname%%logext%" "%logfile%"
        type nul > "%logname%%logext%"
    )
)

popd

此脚本将在Tomcat日志文件夹中查找名为“catalina.log”的日志文件，并将其切割为50MB大小的文件。每当日志文件达到最大大小时，它将重命名为类似于“catalina_2022-01-01_1.log”的格式，其中“2022-01-01”表示当前日期，并在文件名中添加数字以标识它们。新的日志文件将以“catalina_HH-MM-SS.log”的格式创建，并将原始日志文件清空以开始新的日志。请注意，此脚本仅适用于Windows操作系统。