cat <filename> |wc -l

[vuakhobo]

I have huge file, a smallest one is about 9GIG of data that needs to verify how many records in the files after sftp from the client. Currently I use cat <filename> |wc -l to get the job done. I was wondering is there a better of doing it.

 

[PHV]

wc -l /path/to/filename

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[SamBones]

At the risk of angering the OOUC police, this is one place where [tt]cat[/tt] adds functionality. The [tt]wc[/tt] command on it's own also displays the file name. If all you need is the count, putting it through a pipe with [tt]cat[/tt] does it nicely.

If you just need the count with no file name after it, this works too...

wc -l < /path/to/filename

 

[p5wizard]

UUOC Police: so cat isn't needed and doesn't add functionality...

p5

 

[europe]

sed -n '$=' /path/to/filename

Please let me know if the information that was provided is helpfull.
Edwin Plat
A.K.A. Europe

 

[columb]

europe
Whilst I agree that your sed solution provides the correct answer the problem is counting the lines in a file. This is what wc was designed to do. I still see wc as the right tool for the job and Sam's suggestion removes the need for cat which keeps the UUOC police happy.



On the internet no one knows you're a dog

Columb Healy

 

[stefanwagner]

What's the OOUC-police?
Being a major of the gtlt-police, I have to add:
It is forbidden to decorate your filename in a fancy, personal gt/lt-style like this:

cat <filename> | wc -l

because < and > are used all the time on unix.

cat FILE | wc -l

is perfectly sufficient.


don't visit my homepage:

http://home.arcor.de/hirnstrom/bewerbung

 

[SamBones]

The "OOUC Police" is an organisation created from thin air the moment I typoed "UUOC".

And while...

cat <filename> | wc -l

...is incorrect, the line...

cat <filename | wc -l

...works perfectly well.

 

[stefanwagner]

UUOC, OOUC - I see the difference now.

Well - what the FINE is UUOC? :?

don't visit my homepage:

http://home.arcor.de/hirnstrom/bewerbung

 

[SamBones]

UUOC?

Go here

http://en.wikipedia.org/wiki/UUOC

and here

http://partmaps.org/era/unix/award.html

.

 

[vuakhobo]

Thanks guys it works great