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Solve : working with files in dos batch? |
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Answer» hello all Well, pretty simple overall: you didn't understand the second requirement listed. he doesn't want to DISPLAY the creation and modified date,(of which only the Modified date is shown by DIR anyway), but rather store them into two variables, which will then be compared to the second parameter.DOS version 5.1.2006 (i'm not sure if this is write . this is the version of the cmd.exe file)Quote from: avi DOS version 5.1.2006 ... the version of the cmd.exe file XP command PROMPT, which is not DOS at all. i'm running batch files from the command promt. can please someone tell me how can i get the last modied date of a file ? or atlist how can i get a substrig from a strig or merge to strings ? I think i can get the last modified date from the string that " dir" returns . Quote can please someone tell me how can i get the last modied date of a file ? DIR /TW returns the date last written (modified). Enter DIR/? at the command prompt for all the dir options. For information on recovering filename dates etc enter FOR/? | MORE at the command prompt and check out the optional syntax. Enter SET/? | MORE at the command prompt for information on extracting substrings. I don't understand what you mean by "merge two strings". If you mean to concatenate strings this can be achieved by: Set Newstring=%string1%%string2% Good luck thanks alot i finished the problem with file dates, it workes only for files in the same diretory as the .bat file because it recives as the first parameter only the name af the file and not a full path . i'm workin on a solution so that it can use a full path as the firt parameter , but i dont know how to extract the file name out of the path . for ex: supuse %1 contains d:\op\avi.txt i want to store avi.txt in B (anothe var) . is there any way to do this directly ? this is just an example so %1 can contain any path . is there a way to find out the length of a strig? and some other probles i stepted in to 1) set A=0123456789z for %%i in (1,2,3,4,5,6,7,8,9) do ( set B=!A:~1,"!%%i!"! echo %B% ) what's wrong here? shoudn't "!%%i!" espend to it's value? 2) how can i store a spce in o a variable i tried set B=" " but it didn't work 3) how can i work with numbers ? for ex : set A=1 set B=2 echo A+B should return 3 end echo A+1 shoud return 2 or A=A+1 ?Quote from: avi on January 10, 2009, 05:35:09 AM thanks alot if %1 is d:\op\avi.txt (full drive, path, and file name) then using the ~d ~p ~n and ~x variable modifiers: Drive %~d1 is d: Path: %~p1 is \op\ name: %~n1 is avi extension: %~x1 is .txt They can be combined for example %~dpnx1. See the FOR help for full details (type for /? at the prompt) Quote for ex: supuse %1 contains d:\op\avi.txt i want to store avi.txt in B (anothe var) . is there any way to do this directly ? set B=%~nx1 Quote is there a way to find out the length of a strig? See below. Quote and some other probles i stepted in to Code: [Select]@echo off setlocal enabledelayedexpansion REM make vbs script echo Wscript.echo (Len(WScript.Arguments(0)))>stringlength.vbs REM example set string=Mary had a little lamb REM Get string length for /f %%L in ('cscript //nologo stringlength.vbs "%string%"') do set /a slen=%%L echo String is %string% echo String length is %slen% REM show each character in the line for /L %%C in (1,1,%slen%) do ( set /a n=%%C-1 call set char=%%string:~!n!,1%% echo !char! %%C ) Quote 2) how can i store a spce in o a variable i tried set B=" " but it didn't work A space needs quotes. Code: [Select]@echo off set spac=" " REM use ~ to remove quotes for %%S in (%spac%) do set var=%%~S echo hello%var%world Quote 3) how can i work with numbers ? You cannot do this. Batch is not like BASIC. Use SET with the /A switch. A is for Arithmetic. Code: [Select]set /a A=1 set /a B=2 set /a C=A+B echo %C% thank a lot i modified it and this is the resoult : it works perfectly for files directly on the drive (d:\file.ext) but it gives a strange resoult for files containg extra path. i can't understand wat's rong it takes the file as the first argument and the data as the second ( date is MM/DD/YYYY) Code: [Select]@echo off cls setlocal enabledelayedexpansion if exist %1 goto exista if no exist %1 echo fisierul nu exista :exista set direct=%~dp1 set file=%~nx1 echo diretory is %direct% echo file is %file% for /f "delims=*" %%A in ('dir /s/b/tw/a-d %direct%') do ( set fdate=%%~tA echo data E %fdate% set fd=!fdate:~0,10! if %%A==%file% goto data ) :data echo %fd% if %fd%==%2 echo a fost modificata la data %2 if not %fd%==%2 echo nu a fost modificata la data %2 |
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