insert text in the middle of a file Post: 302175295

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I have a problem that I want to insert and delete some chars in the middle of a file. fopen() and fdopen() just allow to append at the end. Is there any simple method or existing library that allow these actions? Thanks in advance.:confused:

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how do u insert text into a specific place in a file, say the middle for example, without changing the name for that file

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Script 1 Pre-requisites Create a file with x amount of lines in it, the content of your choice. Write a script that takes two arguments. The first being a line of text, the second being your newly created file. The script should take the first argument and insert it into the very top (the...

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I wrote a script like #!/bin/bash echo $1 > temp cat $2 >> temp mv temp $2 now I have problem appending the above script(only using bash shell) so that it now inserts the first argument into the middle of the file. I have tried using $(('wc -l < file' / 2 )) but invain so could any one...

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Can anyone help me pls? I want to add a text into the middle of file. I've writtenthe following script text to add="$1" file="$2" lines=$(wc -l $2) half_lines=$(expr $lines / 2) head -$half_lines $2 > temp echo "text to add" >> temp ((half_lines=$half_lines + 1)) tail -$half_lines $2...

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How to insert text in the middle of a file

Hey guys, how do we take a line of text as an argument from a user and then insert it in the middle of a file irrespective of the number of lines in the file. I am trying to do this without SED or AWK. Inserting it in the beginning and at the end is easy, but i am trying to accomplish inserting...

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Adding Text To Middle Of File

Hi I am trying to write a bash script to add a line of text to the middle of a file. The way I worked it out was to calculate the number of lines and divide by 2. The file I am using is called newfile and it just contains lines of data. The new file I have created I have called midfile and...

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How to insert text in the middle of a file?

Hi, So far i've made a script that takes two argument, 1st is the contents and the 2nd is the named file. At the moment i've managed to insert new contents as a new line at the top, but i want to ask how can you insert contents in the middle of the file? Source Code #!/bin/bash #Write...

LEARN ABOUT DEBIAN

ldns_dname_compare

ldns(3) 						     Library Functions Manual							   ldns(3)

NAME

       ldns_dname_compare, ldns_dname_interval-

SYNOPSIS

       #include <stdint.h>
       #include <stdbool.h>

       #include <ldns/ldns.h>

       int ldns_dname_compare(const ldns_rdf *dname1, const ldns_rdf *dname2);

       int ldns_dname_interval(const ldns_rdf *prev, const ldns_rdf *middle, const ldns_rdf *next);

DESCRIPTION

       ldns_dname_compare() Compares the two dname rdf's according to the algorithm for ordering in RFC4034 Section 6.
	      dname1: First dname rdf to compare
	      dname2: Second dname rdf to compare
	      Returns -1 if dname1 comes before dname2, 1 if dname1 comes after dname2, and 0 if they are equal.

       ldns_dname_interval()  check if middle lays in the interval defined by prev and next prev <= middle < next. This is usefull for nsec check-
	      ing
	      prev: the previous dname
	      middle: the dname to check
	      next: the next dname return 0 on error or unknown, -1 when middle is in the interval, +1 when not

AUTHOR

       The ldns team at NLnet Labs. Which consists out of Jelte Jansen and Miek Gieben.

REPORTING BUGS

       Please report bugs to ldns-team@nlnetlabs.nl or in our bugzilla at http://www.nlnetlabs.nl/bugs/index.html

COPYRIGHT

       Copyright (c) 2004 - 2006 NLnet Labs.

       Licensed under the BSD License. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

       ldns_dname_is_subdomain.  And perldoc Net::DNS, RFC1034, RFC1035, RFC4033, RFC4034  and RFC4035.

REMARKS

       This manpage was automaticly generated from the ldns source code by use of Doxygen and some perl.

								    30 May 2006 							   ldns(3)

10 More Discussions You Might Find Interesting

1. Programming

how to insert and delete characters in the middle of file

Discussion started by: ivancheung

2. Shell Programming and Scripting

insert text into the middle of a original file

Discussion started by: mopimp

3. Shell Programming and Scripting

How to insert text into first line of the file and middle of the file?

Discussion started by: ali hussain

4. Shell Programming and Scripting

How to insert the 1st arg into the middle of the file

Discussion started by: boris