For this operation there is no faster way. Even "sed -i" would create a temporary new file.
If you want to do this operation multiple times, then there are ways for optimization.
For example
can be optimized
I have created these files in a particular directory
a_1.txt
a_2.txt
...
..
a_n.txt
Each file has a single line.
I want to write a output file a.txt, which will have concantated value of string from all the files.
which utility should i use. copy, cat or paste????
Can anyone help... (5 Replies)
Hello guys,
I gotta question, i have a lot of log files (simple text) and i need to merge them in group of 10 files, one next to the other, that have sense?
For example, i have the files:
File1
File2
File3
File4
.
.
File100
I need to merge the contents of each file into a new file... (3 Replies)
Hi,
i have the files f1 and f2 like:
files f1:
c1 a1
c2 a2
c3 a3
file f2:
c1 b1
c2 b2
c3 b3
i want merge the f1 and f2 file to f3 file like:
c1 a1 b1
c2 a2 b3
c3 a3 b3........
....
.
.
please help me onthis..... (5 Replies)
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)
hi
i have two files
file1
1234567
1234678
1234679
file2
98765|jjkskk|9393|iyutr
98765|kkooo|9393|hjjjd
98765|abcvfg|9393|sskds
output should be
1234567|jjkskk|9393|iyutr
1234678|kkooo|9393|hjjjd
1234679|abcvfg|9393|sskds (5 Replies)
Given are File A and File B
File A has for example 5 lines:
AAA
BBB
CCC
DDD
EEE
File B has 3 lines:
111
222
333
How can i merge A and B into:
111
222
333
AAA (first line from A)
then a new file: (4 Replies)
Hi,
I would like to know how can I merge files based on their coordinates, but mantaining the score of each file in the output file like:
Note: 1st column is for chromosome, 2nd for start, 3rd for end of segment, 4th for score
file1:
1 200 300 20
1 400 500 30
file2:
1 200 350 30
1... (1 Reply)
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)
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)
Dear Team,
I am using DB2 v10.5 and trying to load huge data using MERGE option ( 10-12 Million) using below query. Basically it loads data from staging to target . Staging table schemaname.Customer_Staging has 12 Million records . Runs for 25 Mins for just select query. But while doing merge... (2 Replies)
Discussion started by: Perlbaby
2 Replies
LEARN ABOUT HPUX
diff3
diff3(1) General Commands Manual diff3(1)NAME
diff3 - 3-way differential file comparison
SYNOPSIS
file1 file2 file3
DESCRIPTION
compares three versions of a file, and prints disagreeing ranges of text flagged with these codes:
all three files differ
file1 is different
file2 is different
file3 is different
The type of change required to convert a given range of a given file to some other is indicated in one of these ways:
Text is to be appended after line number
n1 in file f, where f = or
Text is to be changed in the range line
n1 through line n2. If n1 = n2, the range can be abbreviated to n1.
The original contents of the range follows immediately after a indication. When the contents of two files are identical, the contents of
the lower-numbered file is suppressed.
Produces a script for the
editor that can be used to incorporate into file1 all changes between file2 and file3 (see ed(1)); i.e., the changes that
normally would be flagged and
Produces a script to incorporate only changes flagged
Produces a script to incorporate only changes flagged
Produces a script that will incorporate all
changes between file2 and file3, but treat overlapping changes (that is, changes that would be flagged with in normal
listing) differently. The overlapping lines in both files will be inserted by the edit script bracketed by and lines.
Produces a script that will incorporate only changes flagged
, but treat these changes in the manner of option.
The following command applies the resulting script to file1.
EXTERNAL INFLUENCES
International Code Set Support
Single- and multi-byte character code sets are supported.
WARNINGS
Text lines that consist of a single period defeat
Files longer than 64K bytes do not work.
FILES SEE ALSO diff(1).
diff3(1)