topic Re: large files...cat command.. in Operating System - HP-UX

large files...cat command..

amonamon — Fri, 29 Dec 2006 03:26:44 GMT

Helloo..
I have one small question..I was reading man cat..and there stands..
for files greater than or equal to 2 Gbyte see largefile..

I had before one problem with my script where file was bigger then 2GB so I used split commnad..

so I want to make sure is it really true that cat does not work with files greater or = 2 Gbyte ..

Thanks a lot..

Re: large files...cat command..

Peter Godron — Fri, 29 Dec 2006 04:12:44 GMT

Hi,
have just:
Filesystem enabled for largefile
created file a (nearly 2 Gb)
created file b (1000 bytes)

cat a b > c i.e. create a file > 2Gb
Error 0
cat: Cannot write to output.

So it appears to be correct. cat limited to 2Gb

Re: large files...cat command..

Peter Godron — Fri, 29 Dec 2006 04:28:04 GMT

Hi (again),
please ignore my first mail. The largefile system failed to change, so was running test on nolargefile system.

This time:

Filesystem enabled for largefile
created file a (nearly 2 Gb)
created file b (1000 bytes)

cat a b > c i.e. create a file > 2Gb
Worked
cat c > d i.e. process file > 2Gb
Worked

So not a problem ,as long as filesystem is largefile enabled !

Re: large files...cat command..

Bill Hassell — Fri, 29 Dec 2006 14:12:19 GMT

All the standard Unix commands were made largefile capable back in the first releases of HP-UX 10.xx. The only commands that aren't compatible are industry standard backup tools such as tar, cpio, dump and so on. Now the word largefile or large does not appear in the man page for cat on any supported version of HP-UX. What version are you running?

Re: large files...cat command..

Peter Godron — Mon, 08 Jan 2007 06:43:18 GMT

Hi,
Could you please complete the thread by awarding points to helpful answers and summarising the solution for you.

This will help resolution of similar problems in the future.

Re: large files...cat command..

amonamon — Mon, 22 Jan 2007 04:34:18 GMT

Thanks a lot..:)