Sponsored Content
Top Forums Shell Programming and Scripting Perl:How to insert a line to a file. Post 302480708 by mtomar on Wednesday 15th of December 2010 02:38:39 PM
Old 12-15-2010
Here ..

Code:
#!/usr/bin/perl -w
open(IFILE,"<test.abc") || die "can't open file for read\n"; 
open(OFILE,">abc.out") || die "can't open file for writing\n"; 
while (<IFILE>){
     if(/AAA/) {
        print OFILE $_;
        print OFILE "CCC\n";
    }else {
        print OFILE $_;
}
}
close(IFILE);
close(OFILE);


Code:
$ cat test.abc 
ZZZZ
AAA
DDDD
$ cat abc.out 
ZZZZ
AAA
CCC
DDDD

 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Insert a line as the first line into a very huge file

Hello, I need to insert a line (like a header) as the first line of a very huge file (about 3 ml rows). I am able to do it with sed, but redirecting the output and creating a new file takes quite some time. I was wondering if there was a more efficient way of doing it? Any help would be... (3 Replies)
Discussion started by: shriek
3 Replies

2. Shell Programming and Scripting

insert a line in a file

Hello guys, Need to know how to insert a line at top of the file, without using temp files. Can we do it on the fly? Regards, Rishi (7 Replies)
Discussion started by: RishiPahuja
7 Replies

3. Shell Programming and Scripting

how to insert text before first line in perl

Hello all im doing simple parsing on text file , but now I need to insert string before the first line of the text file , how can I do that in perl? (3 Replies)
Discussion started by: umen
3 Replies

4. Shell Programming and Scripting

Insert line into file

Hi, My File 'temp.txt' contents are like this. <Managers> Mng={{FIL|FAVEI.mng|111}|15.000000|17.000000|17.000000| Mng={{FIL|FAPSV.mng|222}|3.000000|0.000000|0.000000|0.000000| Mng={{FIL|FAVIF.mng|333}|8.000000|8.000000|8.000000|8.000000|... (3 Replies)
Discussion started by: vinay123
3 Replies

5. Shell Programming and Scripting

to insert some word somewhere in the line with shell (or perl)

hello mighty all there is a line of 50 words and i need to take a random number of words from the beginning (20 words for example) then put my word then add other 10 words from the continue then add another my special word then add 20 words till the end.. my own knowledge base can say it is... (12 Replies)
Discussion started by: tip78
12 Replies

6. Programming

insert line into a file

how to insert a line of text that is next to the current line(file pointer pointing to) in the file ?? :wall: ex: suppose a file named 'Sample' has the following content in it. this is to give clear idea about the problem if file pointer is pointing to the first line then i want to... (3 Replies)
Discussion started by: kavitha rao
3 Replies

7. Linux

How to insert new line in perl

HI, I have a text file in which I have removed all new lines as I would like to introduce a new line at the end of each record in the file. There is no common end line for all the records. A new record will start by *RECORD*. So I want to introduce a new line before this line *RECORD*. So Can... (2 Replies)
Discussion started by: kaav06
2 Replies

8. Shell Programming and Scripting

Insert a new line before every 5th line in a file

Hi, I need to insert a new line containing the string "QUERY" above every 5 lines. The below piece of code inserts a new line after every 5th line awk '{print $0} !(NR%5) {print "QUERY"}' sed 'n;n;n;n;G;' --> I do not know how to give "QUERY" string here But I need to insert it before... (4 Replies)
Discussion started by: royalibrahim
4 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. UNIX for Beginners Questions & Answers

Insert a line of text on nth line of a file

Hi All, I am using UNix Sun OS sun4u sparc SUNW,SPARC-Enterprise My intention is to insert a line of text after 13th line of every file inside a particular directory. While trying to do it for a single file , i am using sed sed '3 i this is the 4th line' filename sed: command garbled: 3... (5 Replies)
Discussion started by: gotamp
5 Replies
Gtk2::PageSetup(3)					User Contributed Perl Documentation					Gtk2::PageSetup(3)

NAME
Gtk2::PageSetup HIERARCHY
Glib::Object +----Gtk2::PageSetup METHODS
pagesetup = Gtk2::PageSetup->new pagesetup = Gtk2::PageSetup->new_from_file ($file_name) o $file_name (localized file name) May croak with a Glib::Error in $@ on failure. Since: gtk+ 2.12 pagesetup = Gtk2::PageSetup->new_from_key_file ($key_file, $group_name) o $key_file (Glib::KeyFile) o $group_name (string or undef) May croak with a Glib::Error in $@ on failure. Since: gtk+ 2.12 double = $setup->get_bottom_margin ($unit) o $unit (Gtk2::Unit) $setup->set_bottom_margin ($margin, $unit) o $margin (double) o $unit (Gtk2::Unit) double = $setup->get_left_margin ($unit) o $unit (Gtk2::Unit) $setup->set_left_margin ($margin, $unit) o $margin (double) o $unit (Gtk2::Unit) $setup->load_file ($file_name) o $file_name (string) May croak with a Glib::Error in $@ on failure. Since: gtk+ 2.14 $setup->load_key_file ($key_file, $group_name) o $key_file (Glib::KeyFile) o $group_name (string or undef) May croak with a Glib::Error in $@ on failure. Since: gtk+ 2.14 pageorientation = $setup->get_orientation $setup->set_orientation ($orientation) o $orientation (Gtk2::PageOrientation) double = $setup->get_page_height ($unit) o $unit (Gtk2::Unit) double = $setup->get_page_width ($unit) o $unit (Gtk2::Unit) double = $setup->get_paper_height ($unit) o $unit (Gtk2::Unit) $setup->set_paper_size_and_default_margins ($size) o $size (Gtk2::PaperSize) papersize = $setup->get_paper_size $setup->set_paper_size ($size) o $size (Gtk2::PaperSize) double = $setup->get_paper_width ($unit) o $unit (Gtk2::Unit) double = $setup->get_right_margin ($unit) o $unit (Gtk2::Unit) $setup->set_right_margin ($margin, $unit) o $margin (double) o $unit (Gtk2::Unit) $setup->to_file ($file_name) o $file_name (localized file name) May croak with a Glib::Error in $@ on failure. Since: gtk+ 2.12 $setup->to_key_file ($key_file, $group_name) o $key_file (Glib::KeyFile) o $group_name (string or undef) Since: gtk+ 2.12 double = $setup->get_top_margin ($unit) o $unit (Gtk2::Unit) $setup->set_top_margin ($margin, $unit) o $margin (double) o $unit (Gtk2::Unit) ENUMS AND FLAGS
enum Gtk2::PageOrientation o 'portrait' / 'GTK_PAGE_ORIENTATION_PORTRAIT' o 'landscape' / 'GTK_PAGE_ORIENTATION_LANDSCAPE' o 'reverse-portrait' / 'GTK_PAGE_ORIENTATION_REVERSE_PORTRAIT' o 'reverse-landscape' / 'GTK_PAGE_ORIENTATION_REVERSE_LANDSCAPE' enum Gtk2::Unit o 'pixel' / 'GTK_UNIT_PIXEL' o 'points' / 'GTK_UNIT_POINTS' o 'inch' / 'GTK_UNIT_INCH' o 'mm' / 'GTK_UNIT_MM' SEE ALSO
Gtk2, Glib::Object COPYRIGHT
Copyright (C) 2003-2008 by the gtk2-perl team. This software is licensed under the LGPL. See Gtk2 for a full notice. perl v5.12.1 2010-07-05 Gtk2::PageSetup(3)
All times are GMT -4. The time now is 07:18 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy