Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Insert a line of text on nth line of a file
Top Forums UNIX for Beginners Questions & Answers Insert a line of text on nth line of a file Post 302967454 by Don Cragun on Wednesday 24th of February 2016 02:55:07 AM
Old 02-24-2016
You might also want to try the following:
Code:
#!/bin/ksh
dir='/path/of/directory/to/process'
IAm=${0##*/}
tmpf="$IAm.$$"

trap 'rm -f "$tmpf"' EXIT

cd "$dir"
for file in *
do	[ ! -f "$file" ] && continue
	/usr/xpg4/bin/sed '13a\
this is the 14th line
	' "$file" > "$tmpf" && cp "$tmpf" "$file"
done

Obviously, you'll need to change the path shown in red to a path naming the directory in which you want to process your files.

If sed fails for some reason, it won't destroy the file you were trying to update (which RavinderSingh13's suggestion might do if the awk fails).

If there are any hard links to any of the files being processed, this script will maintain those links. (The code RavinderSingh13 suggested will break the links, if there are any, creating two separate (unlinked) files.)

This would probably also work with /usr/bin/sed on Solaris systems, but I'm almost positive it will work with /usr/xpg4/bin/sed. Unfortunately, I don't have a Solaris system available for testing.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Insert text file at a certain line.

I need to insert a file called temp_impact (which has about 15 lines in it) to a file called 11.23cfg starting at line 33. I searched the forums and found the sed '34i\ test' 11.23cfg > newfile That will enter word test at the appropriate line, but i need the entire file dumped there. Any... (4 Replies)
Discussion started by: insania
4 Replies

2. Shell Programming and Scripting

how to insert a extra line in a text file

how to insert a extra line in a text file using a sh command iam trying to think of a way to add a extra line but without deleting the whole text do anyone have any ideas (2 Replies)
Discussion started by: bhaviknp
2 Replies

3. Shell Programming and Scripting

Insert a line in a text file

So I need to write lines into line X of file X. I can get the file by doing: cfgnumber=$(cat -n -comm.cfg| grep -i "servicegroup_name 24x7-comunicacions") echo $cfgnumber it outputs the Line where it finds now I need to start writing something right bellow that line. thanks (10 Replies)
Discussion started by: 4scriptmoni
10 Replies

4. Shell Programming and Scripting

How to insert some constant text at beginig of each line within a text file.

Dear Folks :), I am new to UNIX scripting and I do not know how can I insert some text in the first column of a UNIX text file at command promtp. I can do this in vi editor by using this command :g/^/s//BBB_ e,g I have a file named as Test.dat and it containins below text: michal... (4 Replies)
Discussion started by: Muhammad Afzal
4 Replies

5. Shell Programming and Scripting

Using sed to insert text file at first line

sed '1r file.txt' <source.txt >desti.txt This example will insert 'file.txt' between line 1 and 2 of source.txt. sed '0r file.txt' <source.txt >desti.txt gives an error message. Does anyone know how 'sed' can insert 'file.txt' before the first line of source.txt? (18 Replies)
Discussion started by: psve
18 Replies

6. UNIX for Dummies Questions & Answers

Insert a line in a sorted text file(s)

Hello, I am trying to add a line (usually just a word) to some text files in a directory that are already sorted. I just don't want to run the sort command again because it can take a long time when the text or log files are really huge. I have a bashscript that will take in the 1st argument... (7 Replies)
Discussion started by: raptor25
7 Replies

7. Shell Programming and Scripting

How to start reading from the nth line till the last line of a file.

Hi, For my reuirement, I have to read a file from the 2nd line till the last line<EOF>. Say, I have a file as test.txt, which as a header record in the first line followed by records in rest of the lines. for i in `cat test.txt` { echo $i } While doing the above loop, I have read... (5 Replies)
Discussion started by: machomaddy
5 Replies

8. UNIX for Dummies Questions & Answers

Insert a line in a text file

I want to insert a line with text after the 9th line of a text file. How would I do this using sed or awk? (2 Replies)
Discussion started by: lost.identity
2 Replies

9. Shell Programming and Scripting

How to read a text file line by line and insert into a database table?

I have a test file that I want to read and insert only certain lines into the the table based on a filter. 1. Rread the log file 12 Hours back Getdate() -12 Hours 2. Extract the following information on for lines that say "DUMP is complete" A. Date B. Database Name C.... (2 Replies)
Discussion started by: JolietJake
2 Replies

10. Shell Programming and Scripting

Printing string from last field of the nth line of file to start (or end) of each line (awk I think)

My file (the output of an experiment) starts off looking like this, _____________________________________________________________ Subjects incorporated to date: 001 Data file started on machine PKSHS260-05CP ********************************************************************** Subject 1,... (9 Replies)
Discussion started by: samonl
9 Replies

LEARN ABOUT HPUX

pkgproto

pkgproto(1)							   User Commands						       pkgproto(1)

NAME

       pkgproto - generate prototype file entries for input to pkgmk command

SYNOPSIS

       pkgproto [-i] [-c class] [path1]

       pkgproto [-i] [-c class] [path1=path2...]

DESCRIPTION

       pkgproto scans the indicated paths and generates prototype(4) file entries that may be used as input to the pkgmk(1) command.

       If  no paths are specified on the command line, standard input is assumed to be a list of paths. If the pathname listed on the command line
       is a directory,	the contents of the directory is searched.  However, if input is read from stdin, a directory specified as a pathname will
       not be searched.

OPTIONS

       -i	       Ignores symbolic links and records the paths as ftype=f (a file) versus ftype=s (symbolic link).

       -c class        Maps the class of all paths to class.

OPERANDS

       path1	Pathname where objects are located.

       path2	Pathname which should be substituted on output for path1.

EXAMPLES

       Example 1: Examples of the use of pkgproto.1.

       The following two examples show uses of pkgproto and a partial listing of the output produced.

       Example 1:

       example% pkgproto /bin=bin /usr/bin=usrbin /etc=etc
       f none bin/sed=/bin/sed 0775 bin bin
       f none bin/sh=/bin/sh 0755 bin daemon
       f none bin/sort=/bin/sort 0755 bin bin
       f none usrbin/sdb=/usr/bin/sdb 0775 bin bin
       f none usrbin/shl=/usr/bin/shl 4755 bin bin
       d none etc/master.d 0755 root daemon
       f none etc/master.d/kernel=/etc/master.d/kernel 0644 root daemon
       f none etc/rc=/etc/rc 0744 root daemon

       Example 2:

       example% find / -type d -print | pkgproto
       d none / 755 root root
       d none /bin 755 bin bin
       d none /usr 755 root root
       d none /usr/bin 775 bin bin
       d none /etc 755 root root
       d none /tmp 777 root root

EXIT STATUS

       0	Successful completion.

       >0	An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       pkgmk(1), pkgparam(1), pkgtrans(1), prototype(4), attributes(5)

       Application Packaging Developer's Guide

NOTES

       By  default,  pkgproto creates symbolic link entries for any symbolic link encountered (ftype=s). When you use the -i option, pkgproto cre-
       ates a file entry for symbolic links (ftype=f). The prototype(4) file would have to be edited to assign such file types as v (volatile),  e
       (editable), or x (exclusive directory). pkgproto detects linked files. If multiple files are linked together, the first path encountered is
       considered the source of the link.

       By default, pkgproto prints prototype entries on the standard output. However, the output should be saved in a  file  (named  Prototype	or
       prototype, for convenience) to be used as input to the pkgmk(1) command.

SunOS 5.10							    6 Nov 2000							       pkgproto(1)
All times are GMT -4. The time now is 12:15 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy