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Top Forums Shell Programming and Scripting Direct the invalid lines to a separate files Post 302361590 by methyl on Tuesday 13th of October 2009 03:15:44 PM
Old 10-13-2009
This is probably a good moment to mention exactly what Operating System and version you have.

A 7 Gigabyte file with a million records implies a record size of about 7 Kilobytes. This file size and record size is way beyond what is normal for processing in unix shell script or basic awk programming. I am assuming that whatever program you used to count the records was able to report the statistics accurately.

Do you have a high level programming language available? Preferably one which can deal with flat files above 2 Gigabytes in size.
 

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script(1)							   User Commands							 script(1)

NAME
script - make record of a terminal session SYNOPSIS
script [-a] [filename] DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the record is saved in the file typescript. See WARNINGS. The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends when the forked shell exits or when Control-d is typed. OPTIONS
The following option is supported: -a Appends the session record to filename, rather than overwriting it. NOTES
script places everything that appears on the screen in filename, including prompts. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a privileged user, that is, root. Be sure that typescript is not a link before running script. SunOS 5.10 30 Jan 2004 script(1)
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