dos batch string manipulation

dos batch string manipulation

[Alin Rus]

Hello,

I'm trying to write some dos batch script for manipulating some paths.
I haven't done this in years so I might be rusty.

The path is relative and given from the command line as argument

@echo off
set wpath=%1
@echo.%wpath%
set newpath=%wpath:~0,-4%
@echo.%newpath%

The thing I'm trying to accomplish is to get rid of the extension

script.bat whatever/test.txt
whatever/test.txt
whatever/test

But I'm getting

script.bat whatever/test.txt
whatever/test.txt
<emptyline>


I'm using dosemu-1.4.0.1 and this [1] as a reference.


[1] http://www.dostips.com/DtTipsStringManipulation.php


Regards,
-- 
Alin Rus
O< ascii ribbon campaign - stop html mail - www.asciiribbon.org

Re: dos batch string manipulation

[Frantisek Hanzlik]

Alin Rus wrote:
> Hello,
> 
> I'm trying to write some dos batch script for manipulating some paths.
> I haven't done this in years so I might be rusty.
> 
> The path is relative and given from the command line as argument
> 
> @echo off
> set wpath=%1
> @echo.%wpath%
> set newpath=%wpath:~0,-4%
> @echo.%newpath%
> 
> The thing I'm trying to accomplish is to get rid of the extension
> 
> script.bat whatever/test.txt
> whatever/test.txt
> whatever/test
> 
> But I'm getting
> 
> script.bat whatever/test.txt
> whatever/test.txt
> <emptyline>
> 
> 
> I'm using dosemu-1.4.0.1 and this [1] as a reference.
> 
> 
> [1] http://www.dostips.com/DtTipsStringManipulation.php
> 
> 
> Regards,

Hello Alin,

it seems as scripts at referenced www.dostips.com are for cmd.exe
shell in win xp and newer. Thus examples there mentioned will not
work at win 95/98/me and of course at neither version of MS DOS up
to last 6.22.

I think You may solve this string manipulation task

1) with some external programs, which are able do string manipulation
 - You can find them e.g. on Simtel.net.

2) maybe some command.com shell replacement is able do it too.

3) other way may be use awk for DOS for creating some.bat file
in form:

set newpath=SomeAWKcreatedString

and then call it for setting newpath:

call some.bat

Best, Franta

Re: dos batch string manipulation

[Frank Cox]

On Tue, 18 Oct 2011 03:38:31 +0200
Frantisek Hanzlik wrote:

> 1) with some external programs, which are able do string manipulation

You may want to look at The Berkley Utilities (berk.zip) which is a set of 40
Unix commands that have been ported to DOS, including sed and awk.

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