Insert content of a file to another file at a line number which is given by third file
Hi friends, here is my problem.
I have three files like this..
cat file1.txt
=======
Code:
unix is best
unix is best
linux is best
unix is best
linux is best
linux is best
unix is best
unix is best
cat file2.txt
========
Code:
Windows performs better
Mac OS performs better
Windows performs better
Mac OS performs better
cat file3.txt
==========
Code:
6
I want to insert content of file2.txt into a file1.txt at a linenumber given by file3.txt..
OUTPUT should be
=============
Code:
unix is best
unix is best
linux is best
unix is best
linux is best
Windows performs better
Mac OS performs better
Windows performs better
Mac OS performs better
linux is best
unix is best
unix is best
can you please suggest me one liner shell command to achieve above task..
Moderator's Comments:
Please use CODE tags as required by forum rules!
Last edited by RudiC; 09-29-2016 at 06:34 AM..
Reason: Added CODE tags.
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file1
======
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hello
how are you
you are wonderful
what time is it
I went to the store last night. and some apple juice
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anotherfile.txt:
with my friends mary, john and harry.
We had a great time.
We bought food
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Discussion started by: martinsmith
2 Replies
LEARN ABOUT ULTRIX
diff3
diff3(1) General Commands Manual diff3(1)Name
diff3 - 3-way differential file comparison
Syntax
diff3 [-ex3] file1 file2 file3
Description
The command compares three versions of a file, and publishes the ranges of text that disagree, flagged with the following codes:
==== all three files differ
====1 file1 is different
====2 file2 is different
====3 file3 is different
The type of change needed to convert a given range of a given file to some other is indicated in one of these ways:
f : n1 a Text is to be appended after line number n1 in file f, where f = 1, 2, or 3.
f : n1 , n2 c
Text is to be changed in the range line n1 to line n2. If n1 = n2, the range may be abbreviated to n1.
The original contents of the range follows immediately after a c indication. When the contents of two files are identical, the contents of
the lower-numbered file is suppressed.
Options-3 Produces an editor script containing the changes between file1 and file2 that are to be incorporated into file3.
-e Produces an editor script containing the changes between file2 and file3 that are to be incorporated into file1.
-x Produces an editor script containing the changes among all three files.
Examples
Under the -e option, publishes a script for the editor that incorporates into file1 all changes between file2 and file3 - that is, the
changes that would normally be flagged ==== and ====3. Option -x (-3) produces a script to incorporate only changes flagged ==== (====3).
The following command applies the resulting script to `file1':
(cat script; echo '1,$p') | ed - file1
Restrictions
Text lines that consist of a single `.' defeat -e.
Files
/tmp/d3?????
/usr/lib/diff3
See Alsocmp(1), comm(1), diff(1), dffmk(1), join(1), sccsdiff(1), uniq(1)diff3(1)