redirect to file

I have a console application that when runs i like to capture its console output and send to a file. any line as console gets updated should get appended to file. Any sample code or piece of working code?.

If your command line looks like

Code:

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prg_one.exe | prg_two.exe

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Then, in prg_two.exe, you can read output data from prg_one.exe, with statements about files (fopen, fread, fclose if you progream in C), but with stdin instead of the name of a file when you open your file. But it more simple to write

Code:

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prg_one.exe >somefile.txt

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Or if your operating system is Unix, you might like to use tail -f