1.

Solve : DOS script to read a text file?

Answer»

Hi

I need a batch file to read the 1st line in a text and save that as another text file.

For eg. I have the 1st line in the text as abcd :1234

I need to read from 7th character as 1234 and store it in a variable and use this as name for another text file 1234.txt

I am using  for/f statement and i am not able to extract the 7th character.

Please help Try LOOKING at
set /?
on the command prompt for more information on getting specific characters of variables.



This code would extract the 7th character of a string.
set variable=%original:~6,1% Quote from: dos_help on March 02, 2010, 05:02:12 PM

For eg. I have the 1st line in the text as abcd :1234

I need to read from 7th character as 1234 and store it in a variable
I am using  for /f statement and I am not able to extract from the 7th character.



C:\>type seven.bat

Code: [Select]echo off

setlocal enabledelayedexpansion
for /f "delims=" %%i in  (seven.txt) do (
echo %%i
set seven=%%i
set seven=!seven:~6,4!
echo seven = !seven!
echo seven > !seven!.txt
dir !seven!.txt
)
Output:

C:\> seven.bat
abcd :1234
seven = 1234
 Volume in drive C has no label.
 Volume Serial Number is F4A3-D6B3

 Directory of C:\

03/02/2010  07:24 PM                 8 1234.txt
               1 File(s)              8 bytes
               0 Dir(s)  299,228,622,848 bytes free

C:\>

Input:

C:\>type seven.txt
abcd :1234

C:\>

reference:
http://www.dostips.com/DtTipsStringManipulation.php#Snippets.RightString

Quote from: dos_help on March 02, 2010, 05:02:12 PM
I am using  for/f statement and i am not able to extract the 7th character.

Please help
use for loop with variable %%a, set delims=":" ,  tokens=1,2 , then get %%b inside the for loop Quote from: dos_help on March 02, 2010, 05:02:12 PM
I need a batch file to read the 1st line in a text and save that as another text file.

C:\>type  ghost32.bat

Code: [Select]echo off

setlocal enabledelayedexpansion
for /f "tokens=1,2 delims=:" %%a in  (seven.txt) do (
echo %%a  %%b
set seven=%%b
echo seven = !seven!
echo seven > "!seven!.txt"
dir "!seven!.txt"
)
rem use for loop with variable %%a, set delims=":" ,  tokens=1,2 ,
rem then get %%b inside the for loop

Output:

C:\> ghost32.bat
abcd   1234
seven = 1234
 Volume in drive C has no label.
 Volume Serial Number is F4A3-D6B3

 Directory of C:\

03/02/2010  08:35 PM                 8 1234  .txt
               1 File(s)              8 bytes
               C:\> Quote from: dos_help on March 02, 2010, 05:02:12 PM
I need a batch file to read the 1st line in a text and save that as another text file.


C:\>type  sed32.bat

Code: [Select]echo off
sed s/"abcd :1234"/1234/g seven.txt  1> seven7.txt

set /p seven=<seven7.txt
echo seven=%seven%
type seven7.txt

echo Hello >  %seven%.txt

dir "%seven%.txt"
Output:


C:\>sed32.bat
seven=1234
1234
 Volume in drive C has no label.
 Volume Serial Number is F4A3-D6B3

 Directory of C:\

03/02/2010  08:35 PM                 8 1234  .txt
               1 File(s)              8 bytes
               0 Dir(s)  299,224,727,552 bytes free

C:\>this looks so familar, greg = bill ? Quote from: ghostdog74 on March 02, 2010, 09:07:46 PM
this looks so familar, greg = bill ?

he goes by MANY names, apparently. Quote from: BC_Programmer on March 02, 2010, 09:24:38 PM
he goes by many names, apparently.
i wonder why he has so many names. did he get banned everytime? Quote from: dos_help on March 02, 2010, 05:02:12 PM
I need a batch file to read the 1st line in a text and save that as another text file.

I'm sorry your thread has veered of topic.

I hope you have enough information to solve your problem.

Off topic posts should use PRIVATE mail.

Good luck Quote from: ghostdog74 on March 02, 2010, 09:31:19 PM
i wonder why he has so many names. did he get banned everytime?
I think so. He's used so many accounts so far, there's no real difference here. Quote from: Helpmeh on March 03, 2010, 03:47:47 PM
He's used so many accounts so far, there's no real difference here.

Off  topic comments should be sent by private mail.

p.s.:   BillRichardson's account is still ACTIVE.

  Summary - BillRichardson  Picture/Text
Name:  BillRichardson
Posts:  194 (2.694 per day)
Position:  Intermediate
Thanked:  15 
Date Registered:  December 21, 2009, 08:19:08 AM


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