08-15-2010
cat - concatenate and print files
sort - sort, merge, or sequence check text files
more - display files on a page-by-page basis
Pipe the output of each into the next, and you're done.
9 More Discussions You Might Find Interesting
1. Programming
I am working on a merge sort of two files of integers, and am fuzzy on some of the logic\syntax. I need two threads, each of which will open a file, read its contents into an array, and then sort the array using qsort. One thread will operate on file f1.dat(10000 numbers) and leave its sorted... (0 Replies)
Discussion started by: AusTex
0 Replies
2. Shell Programming and Scripting
hi,
i am facing a problem in merging two files using awk,
the problem is as stated below,
file1:
A|B|C|D|E|F|G|H|I|1
M|N|O|P|Q|R|S|T|U|2
AA|BB|CC|DD|EE|FF|GG|HH|II|1
....
....
....
file2 :
1|Mn|op|qr (2 Replies)
Discussion started by: shashi1982
2 Replies
3. UNIX for Advanced & Expert Users
Hello all -
I am to this forum and fairly new in learning unix and finding some difficulty in preparing a small shell script. I am trying to make script to sort all the files given by user as input (either the exact full name of the file or say the files matching the criteria like all files... (3 Replies)
Discussion started by: pankaj80
3 Replies
4. Shell Programming and Scripting
Hi, this is about sorting a very large file (like 10 gb) to keep lines with unique entries across SOME of the columns.
The line originally looked like this:
sort -u -k2,2 -k3,3n -k4,4n -k5,5n -k6,6n file_unsorted > file_sorted
please note the -u flag.
The problem is that this single... (4 Replies)
Discussion started by: jbr950
4 Replies
5. Programming
Hi friends,
I have implemented the merge sort algorith in c, before I put forward my question, you please have a look at my code.
// The array is sorted, as 1234
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int A = {4, 3, 2, 1};
void Merge_Sort(int , int, int);
void... (0 Replies)
Discussion started by: gabam
0 Replies
6. Shell Programming and Scripting
Hi,
My requirement is,there is a directory location like:
:camp/current/
In this location there can be different flat files that are generated in a single day with same header and the data will be different, differentiated by timestamp, so i need to verify how many files are generated... (10 Replies)
Discussion started by: srikanth_sagi
10 Replies
7. Shell Programming and Scripting
Dear Gents,
Please I need your help... I need small script :) to do the following.
I have a thousand of files in a folder produced daily.
I need first to merge all files called. txt (0009.txt, 0010.txt, 0011.txt) and and to output a resume of all information on 2 separate files in csv... (14 Replies)
Discussion started by: jiam912
14 Replies
8. Shell Programming and Scripting
Hi All,
I have 4 files in below format. I took them as an example.
File 1: Cut from position 1-4 then 6-7 then 8-14 then rest left and make them as columns in one new file. Inserting character H to the initial of all line like HCTOT.
CTOT 456787897 Low fever
CTOR 556712345 High fever... (2 Replies)
Discussion started by: Mannu2525
2 Replies
9. Shell Programming and Scripting
I have 42 text files; each containing up to 34 lines with following structure;
file1
H-01 23
H-03 5
H-05 9
H-02 14
.
.
file2
H-01 17
H-02 43
H-04 7
H-05 8
H-03 7
.
.
file3 (6 Replies)
Discussion started by: Syeda Sumayya
6 Replies
MERGE(1) General Commands Manual MERGE(1)
NAME
merge - three-way file merge
SYNOPSIS
merge [ options ] file1 file2 file3
DESCRIPTION
merge incorporates all changes that lead from file2 to file3 into file1. The result ordinarily goes into file1. merge is useful for com-
bining separate changes to an original. Suppose file2 is the original, and both file1 and file3 are modifications of file2. Then merge
combines both changes.
A conflict occurs if both file1 and file3 have changes in a common segment of lines. If a conflict is found, merge normally outputs a
warning and brackets the conflict with <<<<<<< and >>>>>>> lines. A typical conflict will look like this:
<<<<<<< file A
lines in file A
=======
lines in file B
>>>>>>> file B
If there are conflicts, the user should edit the result and delete one of the alternatives.
OPTIONS
-A Output conflicts using the -A style of diff3(1), if supported by diff3. This merges all changes leading from file2 to file3 into
file1, and generates the most verbose output.
-E, -e These options specify conflict styles that generate less information than -A. See diff3(1) for details. The default is -E. With
-e, merge does not warn about conflicts.
-L label
This option may be given up to three times, and specifies labels to be used in place of the corresponding file names in conflict
reports. That is, merge -L x -L y -L z a b c generates output that looks like it came from files x, y and z instead of from files
a, b and c.
-p Send results to standard output instead of overwriting file1.
-q Quiet; do not warn about conflicts.
-V Print RCS's version number.
DIAGNOSTICS
Exit status is 0 for no conflicts, 1 for some conflicts, 2 for trouble.
IDENTIFICATION
Author: Walter F. Tichy.
Manual Page Revision: 5.8.1; Release Date: 2012-06-06.
Copyright (C) 2010-2012 Thien-Thi Nguyen.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Paul Eggert.
Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
SEE ALSO
diff3(1), diff(1), rcsmerge(1), co(1).
BUGS
It normally does not make sense to merge binary files as if they were text, but merge tries to do it anyway.
GNU RCS 5.8.1 2012-06-06 MERGE(1)