Sponsored Content
Full Discussion: Huge files manipulation
Top Forums UNIX for Advanced & Expert Users Huge files manipulation Post 302255482 by joeyg on Thursday 6th of November 2008 01:32:13 PM
Old 11-06-2008
Hammer & Screwdriver Could you break into lots of files, do your work, then recombine?

I am thinking here...
based on the first position character, copy all lines with "^[aA]" to file_a by using grep (for instance)
repeat for bB and cC and so on

then do your dup check (sort -u maybe) on each of 26 files

finally, recombine the 26 files
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Comparing two huge files

Hi, I have two files file A and File B. File A is a error file and File B is source file. In the error file. First line is the actual error and second line gives the information about the record (client ID) that throws error. I need to compare the first field (which doesnt start with '//') of... (11 Replies)
Discussion started by: kmkbuddy_1983
11 Replies

2. UNIX for Dummies Questions & Answers

Difference between two huge files

Hi, As per my requirement, I need to take difference between two big files(around 6.5 GB) and get the difference to a output file without any line numbers or '<' or '>' in front of each new line. As DIFF command wont work for big files, i tried to use BDIFF instead. I am getting incorrect... (13 Replies)
Discussion started by: pyaranoid
13 Replies

3. High Performance Computing

Huge Files to be Joined on Ux instead of ORACLE

we have one file (11 Million) line that is being matched with (10 Billion) line. the proof of concept we are trying , is to join them on Unix : All files are delimited and they have composite keys.. could unix be faster than Oracle in This regards.. Please advice (1 Reply)
Discussion started by: magedfawzy
1 Replies

4. Shell Programming and Scripting

Split a huge data into few different files?!

Input file data contents: >seq_1 MSNQSPPQSQRPGHSHSHSHSHAGLASSTSSHSNPSANASYNLNGPRTGGDQRYRASVDA >seq_2 AGAAGRGWGRDVTAAASPNPRNGGGRPASDLLSVGNAGGQASFASPETIDRWFEDLQHYE >seq_3 ATLEEMAAASLDANFKEELSAIEQWFRVLSEAERTAALYSLLQSSTQVQMRFFVTVLQQM ARADPITALLSPANPGQASMEAQMDAKLAAMGLKSPASPAVRQYARQSLSGDTYLSPHSA... (7 Replies)
Discussion started by: patrick87
7 Replies

5. Shell Programming and Scripting

Splitting the Huge file into several files...

Hi I have to write a script to split the huge file into several pieces. The file columns is | pipe delimited. The data sample is as: 6625060|1420215|07308806|N|20100120|5572477081|+0002.79|+0000.00|0004|0001|......... (3 Replies)
Discussion started by: lakteja
3 Replies

6. Shell Programming and Scripting

Compare 2 folders to find several missing files among huge amounts of files.

Hi, all: I've got two folders, say, "folder1" and "folder2". Under each, there are thousands of files. It's quite obvious that there are some files missing in each. I just would like to find them. I believe this can be done by "diff" command. However, if I change the above question a... (1 Reply)
Discussion started by: jiapei100
1 Replies

7. Shell Programming and Scripting

Comparing 2 huge text files

I have this 2 files: k5login sanwar@systems.nyfix.com jjamnik@systems.nyfix.com nisha@SYSTEMS.NYFIX.COM rdpena@SYSTEMS.NYFIX.COM service/backups-ora@SYSTEMS.NYFIX.COM ivanr@SYSTEMS.NYFIX.COM nasapova@SYSTEMS.NYFIX.COM tpulay@SYSTEMS.NYFIX.COM rsueno@SYSTEMS.NYFIX.COM... (11 Replies)
Discussion started by: linuxgeek
11 Replies

8. Shell Programming and Scripting

Compression - Exclude huge files

I have a DB folder which sizes to 60GB approx. It has logs which size from 500MB - 1GB. I have an Installation which would update the DB. I need to backup this DB folder, just incase my Installation FAILS. But I do not need the logs in my backup. How do I exclude them during compression (tar)? ... (2 Replies)
Discussion started by: DevendraG
2 Replies

9. UNIX for Dummies Questions & Answers

File comparison of huge files

Hi all, I hope you are well. I am very happy to see your contribution. I am eager to become part of it. I have the following question. I have two huge files to compare (almost 3GB each). The files are simulation outputs. The format of the files are as below For clear picture, please see... (9 Replies)
Discussion started by: kaaliakahn
9 Replies

10. Shell Programming and Scripting

Aggregation of Huge files

Hi Friends !! I am facing a hash total issue while performing over a set of files of huge volume: Command used: tail -n +2 <File_Name> |nawk -F"|" -v '%.2f' qq='"' '{gsub(qq,"");sa+=($156<0)?-$156:$156}END{print sa}' OFMT='%.5f' Pipe delimited file and 156 column is for hash totalling.... (14 Replies)
Discussion started by: Ravichander
14 Replies
IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
All times are GMT -4. The time now is 09:10 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy