New to sed...
Have a file foo.txt (below).
Need to replace text on 2 lines, but can only feed sed the first few characters of each line (all lines are unique).
So, in my example, I have put '$' in place of what I need to figure out how to feed the whole line.
What I have thus far:
foo.txt:
Thanks, this board is wonderful.
Yes, I do search before posting.
---------- Post updated at 06:24 PM ---------- Previous update was at 06:12 PM ----------
May have answered my own question...
Best way?
May be characters after, so that is why I did the a-z and A-Z.
Last edited by boolean2222; 08-10-2009 at 07:25 PM..
Reason: forgot '=' sign
Hi all,
I want to replace text 'DEF' for those files containing text 'ABC'.
I can only locate the files containing text 'ABC', but I don't know how to replace the text 'ABC' with 'DEF'.
I use the following command to locate the files containing 'ABC'
find . -exec grep -l 'ABC'... (1 Reply)
I need to replace the line containing "STAGE_DB" with the line
"STAGE_DB $DB # database that contains the table being loaded ($workingDB)"
Here $DB is passed during the runtime.
How can I do this?
Thanks,
Kousikan (2 Replies)
Hi,
I have a file with large number of records. Sample below:
123456789QWERT2U 2 erter
987123678ZXCVB6Y 5 7689
934567123GHJKUI4O 7
-
--
--
I want the 16th character in each record to be replaced with the below as follows;so 2 will become K, 6 will become O and 4 will become... (3 Replies)
Lets say I have file.txt:
(Product:Price:QuantityAvailable) (: as delimiter)
Chocolate:5:5
Banana:33:3
I am doing a edit/update function.
I want to change the Quantity Available, so I tried using the SED command to replace 5, but my Price which is also 5 is changed instead.
(for the Banana... (13 Replies)
Hi How Are you?
I am doing fine!
I need to go now?
I will see you tomorrow!
Basically I need to replace the entire line containing "doing" with a blank line:
I need to the following output:
Hi How Are you?
I need to go now?
I will see you tomorrow!
Thanks in advance.... (1 Reply)
Hello All
I am struck in the issue which I want to share with all of you.
What I am trying to do is For every line in a file I have to replace a particular character from the given character in a file
For Example
Suppose the data is
1111x2222
1111x2222
2222y3333
1111x2222
I... (4 Replies)
I have a text file that looks like this:
-----------------------------------------
sta WP00
time 10/23/2013 20:10:17
sensor trillium_240_2 0 583
add
close sensor trillium_240_2 10/23/2013 20:10:17
sensor trillium_120 0 279
add
close sensor trillium_120 10/23/2013 20:10:35... (11 Replies)
Hi,
i have a huge file that need to check for a pattern that occur more than once in a line like below:-
#lkk>cd-m>A0DV0>192.134.1.1 blablabladsdjsk
jshdfskfslfs
#lqk>cd-m>A1SV0>192.14.11.1 blalalbnalablab
balablablajakjakjakja
#pldqw>sf-w>PH67FR>168.55.1.1 balablabala... (5 Replies)
friends I am struck in a situation where I need to comment a line start with space as below in a file
root@LOCALHOST * rw
LOCALHOST* r
I should comment second line only
Any help please (16 Replies)
I have a situation where a file "config.txt" looks like this
Servername:
OS:
Serername:
OS:
Servername:
OS:
....
....
...
Servername:
OS:
looking for the sed syntax to replace the "Nth" occurrence of Servername (i would apply the same logic to OS as well), want to replace the Nth... (4 Replies)
Discussion started by: alldbest
4 Replies
LEARN ABOUT DEBIAN
io::async::protocol::linestream
IO::Async::Protocol::LineStream(3pm) User Contributed Perl Documentation IO::Async::Protocol::LineStream(3pm)NAME
"IO::Async::Protocol::LineStream" - stream-based protocols using lines of text
SYNOPSIS
Most likely this class will be subclassed to implement a particular network protocol.
package Net::Async::HelloWorld;
use strict;
use warnings;
use base qw( IO::Async::Protocol::LineStream );
sub on_read_line
{
my $self = shift;
my ( $line ) = @_;
if( $line =~ m/^HELLO (.*)/ ) {
my $name = $1;
$self->invoke_event( on_hello => $name );
}
}
sub send_hello
{
my $self = shift;
my ( $name ) = @_;
$self->write_line( "HELLO $name" );
}
This small example elides such details as error handling, which a real protocol implementation would be likely to contain.
DESCRIPTION EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_read_line $line
Invoked when a new complete line of input is received.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
on_read_line => CODE
CODE reference for the "on_read_line" event.
METHODS
$lineprotocol->write_line( $text )
Writes a line of text to the transport stream. The text will have the end-of-line marker appended to it; $text should not end with it.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::Protocol::LineStream(3pm)