Sorting Do

[Sam]

I have a large file with millions of records and I have to clean it up and
delete all lines that do not start with certain string (let's say XYZ).
Can this be done in DOS?
Any suggestions on what approach/tools I can take here.
Best,
Sam

 

[Pegasus \(MVP\)]

I have a large file with millions of records and I have to clean it up and
delete all lines that do not start with certain string (let's say XYZ).
Can this be done in DOS?
Any suggestions on what approach/tools I can take here.
Best,
Sam

No, you can't to this in DOS (which is this ancient operating
system used by Microsoft back in 1978) but you can do it in
a Command Prompt by using this command:

type MyFile.txt | findstr /b /i "XYZ" > MyNewFile.txt

Note that MyFile.txt must be a text file. Expect the program
to take a long time to execute if you have millions of records.

 

[Uncle Grumpy]

No, you can't to this in DOS (which is this ancient operating
system used by Microsoft back in 1978)

<ahem>... FIRST used would be more correct.

 

[Gord Dibben]

Or used up to 1993 by those without a computer capable of running Windows<g>


Gord Dibben MS Excel MVP

 

[Twayne]

<ahem>... FIRST used would be more correct.

And is still in very heavy use in many places today.

--
Twayne

Tired of MS Office and their shananigans?
Try this free replacement:
http://www.openoffice.org

 

[HeyBub]

And is still in very heavy use in many places today.

In fact, a GREATLY enhanced and more versatile/complicated version can be
found on Linux machines.

 

[SoCalCommie]

In fact, a GREATLY enhanced and more versatile/complicated version can be
found on Linux machines.

Actually, DOS (Disk Operating System) is what all operating systems (OSs)
ARE... Including Vista!