Replacing values in a column if they equal a certain value
Hi,
I have a tab delimited text file where some lines have the string "NA" in the second column. For these lines, I want to replace NA with the value in the first column, the symbol underscore followed by the value in the fourth column. How do I go about doing that? Thanks!
Does anybody understand why this is not being interpreted as true.
Script:
#!/bin/bash
errored=`grep "errored" new_update_scripts.txt`
echo $errored = "errored"
if ; then
echo true
else
echo false
fi
Output:
$ UpdateScripts
errored = errored
false (7 Replies)
Hi all
I am trying to scan a file that has 3 columns:
red blue 123351
red blue 848655
red blue 126354
red blue 023158
black white 654896
red blue 650884
I want an output that sums the rows that have matching columns 1 and 2 :wall:
red blue has 5 entries
black white has 1 entry
... (4 Replies)
Please help me with an shell / awk script to achieve following;
File-1:
ABCDW01 12322 23322
BDADW01 22232 24453
EDFAW00 32232 23422
and so on, notice that the first coloumn is a code and the another file contains the real value of each entry in the first colum above but not in a... (4 Replies)
Hi, i need help on replacing negative values in a column with 0. any quick fix on this? thanks much. for instance,
input:
1
2.3
-0.4
-25
12
13
45
-12
desired output
1
2.3
0
0
12
13
45 (4 Replies)
hi all ,
( perl)
i am trying to replace jst one column in a file for eg
month dayofweek dealar car-name
jan thurs mercedes c300
feb wed lexus is300
all this data is in a master file and i want to replace jan with 1
feb... (5 Replies)
Hi,
I want to replace a chain of if-else statement in an old AWK file with values from Db2 table or CSV file. The part of code is below...
if (start_new_rec=="true"){
exclude_user="false";
user=toupper($6);
match(user, "XXXXX.");
if (RSTART ==2 ) {
... (9 Replies)
Hello everyone,
i need to replace in the second column of my csv file, points by nothing and dash by comma like this:
Input:
1 2 1;12.111.312-2;1.2;2;1-3
2 1 1;11.212.331-1;3.3;1;2-2
Output:
1 2 1;12111312;2;1.2;2;1-3
2 1 1;11212331;1;3.3;1;2-2
SED or PERL commands preferably.
... (7 Replies)
Hello everyone,
I have a requirement as shown below. I need to delete consecutive same values from the source file and give it as output file.
Source:
a,b,c,d,e,e,f,g
Target:
a,b,c,d,f,g
The repeating value "e" should be deleted from the file completely. How can I achieve this... (14 Replies)
Hello All,
I am having the file as below .I need to replace column 9-12 with some other values. In the below file I need to replace 1509 to 1508 and 1508 to 1507 .Can you please help me in how to do that
Thanks,
Arun
... (10 Replies)
Hello,
I have compiled a script but I have stucked at one point.
Each line contains two pcs of % value and what I want to do is to delete any line if both % values are zero.
data:
expected output:
ow3 should be deleted as both percentage value in related line are equal to zero.
... (2 Replies)
Discussion started by: baris35
2 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)