Deleting the lines exist between the Mattched Patterns
Hi,
I have a file with the content:
Code:
for name in \
sree\
rama\
laila\
srihari\
vicky\
john
do
echo $name
done
I need to remove all the name lines that exist between for (first line) and do line so that i can replace with new names.
Output file should look like:
Code:
for name in \
do
echo $name
done
when i use the below command, it is deleting for line and do lines as well.
Code:
sed -i '/for/,/do/d' file
Please take for line and do line as a reference because we may not sure about the number of lines between for line and do line. Those lines get changed every time.
I want to delete lines like this
sed '/FROM_HERE/,/TO_HERE/d'
but I would like to *not* delete the second match, i.e. the TO_HERE line. How can I achieve this?
Thank you! (1 Reply)
Hi All,
I have written the below script that searches for the pattern in a file and delete them if present. please can some one have a look and suggest the changes in the script.
#!bin/sh
# The pattern that user want to add to the files
echo "Enter the pattern of the redirect"
read... (4 Replies)
Hi Gurus,
I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite... (4 Replies)
hi,
Here is excerpt from my xml file
<!-- The custom module to do the authentication for LDAP
-->
</login-module>
<login-module code="com.nlayers.seneca.security.LdapLogin" flag="sufficient">
<module-option... (1 Reply)
I have a reference file that needs to remain static and another file that may or may not have duplicate rows that match the reference file. I need help with a command that will delete any duplicate rows from the second file while leaving reference file intact
For example reference file would... (4 Replies)
I want to delete 1 line above the paatern and 3 lines below the pattern and the pattern line itself, on the whole 5 lines. If there are three patterns to be deleted what to do and the final text file to be captured in a new file. (1 Reply)
I want to delete 1 line above the paatern and 3 line below the pattern and the pattern line itself, on the whole 5 lines. If there are three patterns what to do and the final text file to be captured in a new file. (3 Replies)
Hello.
I am not having luck with sed or awk today.
$ echo "$BrackListFinal"
DSCF3649-DSCF3651_Brkt
DSCF3649.JPG 2014-07-21 13:34:44 On 1
DSCF3649.RAF 2014-07-21 13:34:44 On 1
DSCF3650.JPG 2014-07-21 13:34:45 On 2
DSCF3650.RAF 2014-07-21 13:34:45 On 2... (3 Replies)
Hi All ,
There always exist one process in hold state every day which will cause savior impact if i didn't kill it.
i will do it manually . Manul process is this.
sudo -iu root/opt/app/root/cdlinux/ndm/bin/direct -- it will take me connect direct prompt
Sel proc ; -- it will displays... (9 Replies)
Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" .
I have attached sample input file and the desired input should be as:
INPUT FORMAT:
SELECT
ABCD,
DEFGH,
DFGHJ,
JKLMN,
AXCVB,... (5 Replies)
Discussion started by: nani2019
5 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)