Pipes

jayant17 · 02-27-2010, 02:00 PM

Hi,

How should I direct the output of my program, which is a very huge file, (in gigabytes) as an input to a different program through pipes in linux. I have scripts written for both the programs.

I'll appreciate a quick response.

acid_kewpie · 02-27-2010, 02:35 PM

I don't understand the question. If you want to use a pipe, then there's nothing to ask.

Code:

script1 | script 2

Are you referring to named pipes and fifo's? if so then just use mkfifo to make the fifo and use that as the output file name in the first script. But then that is not redirection...

mesiol · 02-27-2010, 02:35 PM

Hi,

Code:

cat OUTPUT_FILENAME | MYPROGRAM

should do the job.

MTK358 · 02-27-2010, 03:04 PM

Feed the outpur of prog1 into the input of prog2:

prog1 | prog2

Feed the output of prog1 into a file:

prog1 > filename

Append the output of prog1 to a file:

prog1 >> filename

Feed a file into the input of prog1:

prog1 < filename

-- or --

cat filename | prog1