Sponsored Content
Top Forums Shell Programming and Scripting merging two .txt files by alternating x lines from file 1 and y lines from file2 Post 302525224 by ink_LE on Thursday 26th of May 2011 05:24:53 AM
Old 05-26-2011
Lightbulb merging two .txt files by alternating x lines from file 1 and y lines from file2

Hi everyone,

I have two files (A and B) and want to combine them to one by always taking 10 rows from file A and subsequently 6 lines from file B. This process shall be repeated 40 times (file A = 400 lines; file B = 240 lines).

Does anybody have an idea how to do that using perl, awk or sed?

Thank you so much in advance!
Iris

------------------------------------------------------------------------------
File A
------------------------------------------------------------------------------
Code:
0000 0    BIROB    18    brb    PSI    2    99
0001 17    ROBER    9    rbr    PSI    2    99
0002 5   TASOT    16    tst    PSI    2    99
0003 78    KASEK    6    ksk    PSI    2    99
...

-------------------------------------------------------------------------------
File B
-------------------------------------------------------------------------------
Code:
0000 N    NNNNN    N    N    CCCCC    NNN    2
0001 P    PPPPP    P    P    CCCCC    PPP    1
0002 P    PPPPP    P    P    CCCCC    PPP    1
0003 P    PPPPP    P    P    CCCCC    PPP    1
0004 N    NNNNN    N    N    CCCCC    NNN    2


Last edited by Franklin52; 05-26-2011 at 12:47 PM.. Reason: Please use code tags
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Merging files with AWK filtering and counting lines

Hi there, I have a couple of files I need to merge. I can do a simple merge by concatenating them into one larger file. But then I need to filter the file to get a desired result. The output looks like this: TRNH 0000000010941 ORDH OADR OADR ORDL ENDT 1116399 000000003... (2 Replies)
Discussion started by: Meert
2 Replies

2. Shell Programming and Scripting

Urgent Need Help! Merging lines in .txt file

I need to write a script that reads through an input .txt file and replaces the end value with the end value of the next line for lines that have distance <=4000. The first label line is not actually in the input. In the below example, 3217 is the distance from the end of the first line to the... (12 Replies)
Discussion started by: awknerd
12 Replies

3. Shell Programming and Scripting

Merging lines in a file

Hi, I want to merge the lines starting with a comma symbol with the previous line of the file. Input : cat file.txt name1,name2 ,name3,name4 emp1,emp2,emp3 ,emp4 ,emp5 user1,user2 ,user3 Output name1,name2,name3,name4 emp1,emp2,emp3,emp4,emp5 (9 Replies)
Discussion started by: mohan_tuty
9 Replies

4. Shell Programming and Scripting

Matching lines across multiple csv files and merging a particular field

I have about 20 CSV's that all look like this: "","","","","","","","","","","","","","","",""What I've been told I need to produce is the exact same thing, but with each file now containing the start_code from every other file where the email matches. It doesn't matter if any of the other... (1 Reply)
Discussion started by: Demosthenes
1 Replies

5. Shell Programming and Scripting

sed to cp lines x->y from 1.txt into lines a->b in file2.txt

I have one base file, and multiple target files-- each have uniform line structure so no need to use grep to find things-- can just define sections by line number. My question is quite simple-- can I use sed to copy a defined block of lines (say lines 5-10) from filename1.txt to overwrite an... (3 Replies)
Discussion started by: czar21
3 Replies

6. UNIX for Dummies Questions & Answers

find lines in file1.txt not found in file2.txt memory problem

I have a diff command that does what I want but when comparing large text/log files, it uses up all the memory I have (sometimes over 8gig of memory) diff file1.txt file2.txt | grep '^<'| awk '{$1="";print $0}' | sed 's/^ *//' Is there a better more efficient way to find the lines in one file... (5 Replies)
Discussion started by: raptor25
5 Replies

7. Shell Programming and Scripting

Merging multiple files using lines from one file

I have been working of this script for a very long time and I have searched the internet for direction but I am stuck here. I have about 3000 files with two columns each. The length of each file is 50000. Each of these files is named this way b.4, b.5, b.6, b.7, b.8, b.9, b.10, b.11, b.12... (10 Replies)
Discussion started by: iconig
10 Replies

8. Shell Programming and Scripting

Merging multiple lines to columns with awk, while inserting commas for missing lines

Hello all, I have a large csv file where there are four types of rows I need to merge into one row per person, where there is a column for each possible code / type of row, even if that code/row isn't there for that person. In the csv, a person may be listed from one to four times... (9 Replies)
Discussion started by: RalphNY
9 Replies

9. UNIX for Beginners Questions & Answers

Merging specifc lines of three files into one?

Recall that nc-county-pop.dat has 100 lines, and each line corresponds to a county. The files girls.dat and boys.dat each has 50 lines. Assume that the girls come from the first 50 counties and each county has only one girl. That is the first girl comes from the first county, the second girl comes... (1 Reply)
Discussion started by: novicep11
1 Replies

10. Shell Programming and Scripting

Merging two files each contain 16 lakh lines on HP-UX 11.11 system

Hello All , I am trying to merge two files each contain 16 lakh lines ..My requirement is i have merge after every 14 lines of each file . Like from file1 14 lines then after after 14 lines form file2 ..so i wrote below script . It is working for small files ,but large files script not... (10 Replies)
Discussion started by: Phani369
10 Replies
paste(1)						      General Commands Manual							  paste(1)

Name
       paste - merge file data

Syntax
       paste file1 file2...
       paste -dlist file1 file2...
       paste -s [-dlist] file1 file2...

Description
       In  the	first  two forms, concatenates corresponding lines of the given input files file1, file2, etc.	It treats each file as a column or
       columns of a table and pastes them together horizontally (parallel merging).

       In the last form, the command combines subsequent lines of the input file (serial merging).

       In all cases, lines are glued together with the tab character, or with characters from an optionally specified  list.   Output  is  to  the
       standard output, so it can be used as the start of a pipe, or as a filter, if - is used in place of a file name.

Options
       -       Used in place of any file name, to read a line from the standard input.	(There is no prompting).

       -dlist  Replaces  characters  of  all but last file with nontabs characters (default tab).  One or more characters immediately following -d
	       replace the default tab as the line concatenation character.  The list is used circularly, i. e. when exhausted, it is reused.	In
	       parallel  merging  (i. e. no -s option), the lines from the last file are always terminated with a new-line character, not from the
	       list.  The list may contain the special escape sequences: 
 (new-line), 	 (tab), \ (backslash), and  (empty string, not a null
	       character).   Quoting  may  be  necessary,  if characters have special meaning to the shell (for example, to get one backslash, use
	       -d"\\" ).
	       Without this option, the new-line characters of each but the last file (or last line in case of the -s option) are  replaced  by  a
	       tab character.  This option allows replacing the tab character by one or more alternate characters (see below).

       -s      Merges  subsequent  lines  rather  than	one  from  each input file.  Use tab for concatenation, unless a list is specified with -d
	       option.	Regardless of the list, the very last character of the file is forced to be a new-line.

Examples
       ls | paste -d" " -
       list directory in one column
       ls | paste - - - -
       list directory in four columns
       paste -s -d"	
" file
       combine pairs of lines into lines

Diagnostics
       line too long
		 Output lines are restricted to 511 characters.

       too many files
		 Except for -s option, no more than 12 input files may be specified.

See Also
       cut(1), grep(1), pr(1)

																	  paste(1)
All times are GMT -4. The time now is 11:15 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy