中国DOS联盟

批处理中如何判断一个文本中的行数,如果超出20行清理文件

@echo off

for /f "delims=: tokens=1" %%a in ('findstr /N ".*" yourfile.ext') do set LineNum=%%a

if %LineNum% gtr 20 del yourfile.ext

Last edited by lxmxn on 2007-9-27 at 02:38 PM ]

if %LineNum% gtr 20 ...

呵,笔误,多谢Climbing的提示.

::echo off
rem show the key numbers in the txt
rem include ip,packet_sent,packet_received,Minimum_time,maximum_time,average_time
set str=
setlocal enabledelayedexpansion
for /f "delims=" %%w in (add.txt) do (
set str=
set str=!str!%%w^|
for /f "skip=14 delims=" %%a in ('ping -n 10 %%w') do (
set str=!str!%%a)
echo !str! >2.txt
set str=
for /f "tokens=1-30 delims==,:" %%a in (2.txt) do (
echo %date:~0,10% %time:~0,8%^|%%a^|%%d^|%%f^|%%k^|%%m^|%%o >>-%date:~-10%.txt )
pause)


偶是个初学者,看了好多天还是不太明白,请那位高手,帮我翻译翻译!谢谢

用：find /c /v "" test.txt
当test.txt超过1000行时，
find /c /v "" test.txt明显优于findstr /n “.” test.txt
前者知显示行数
后者不仅显示行数而且显示内容，这使得输出结果变慢，尤其是文件较大时