Hi. How do I find an expression with awk in only one column, and if it fits, then print that whole column.
1 apple oranges
2 bannanas pears
3 cats dogs
4 hesaid shesaid
echo "which number:"
read NUMBER (user inputs number 2 for this example)
awk " /$NUMBER/ {field to search is field... (2 Replies)
I have a data file with two columns,
for the second column I want to find the minimum,
and subtract this minimum from each value in the second column,
how to realize this using C shell
For example, I have
1 -2.4
2 -4.8
3 7.9
I wanna output
1 2.4
2 0
3 12.7
Thanks! (4 Replies)
Hi,
I have a wide and long dataset which looks as follows:
0 3 4 2 3 0 2 2 ...
3 2 4 0 2 2 2 3 ...
0 3 4 2 0 4 4 4 ...
3 0 4 2 2 4 2 4 ...
....
I would like to obtain the minimum of each column (ignoring zero values) so the output would look like:
3 2 4 2 2 2 2 2
I have the... (3 Replies)
I have a file like:
I would like to find lines lines with duplicate values in column 1, and retain only one based on two conditions: 1) keep line with highest value in column 3, 2) if column 3 values are equal, retain the line with the highest value in column 4.
Desired output:
I was able to... (3 Replies)
hi all,
i want to get the most comon column w.r.t another
this is my file
Tom|london
Tom|london
Tom|Paris
Adam|Madrid
Adam|NY
the Output to get me :
Tom|london
Adamn|Madrid
ive tried (10 Replies)
Hello,
I need to find out the minimum and maximum values based on specific column, and then print out the entire row with the max value.
Infile.txt:
scf6 290173 290416 . + X_047241 T_00113118-1
scf6 290491 290957 . + X_047241 T_00113118-2
scf6 290898 290957 . + X_047241 T_00113119-3
scf6... (2 Replies)
Need your support for below. Please help to get required output
If column 5 is INV then only consider column1 and take out duplicates/identical rows/values from column1 and then put minimum value of column6 in column7 and put maximum value in column 8 and then need to do subtract values of... (7 Replies)
Discussion started by: as7951
7 Replies
LEARN ABOUT DEBIAN
io::async::pid
IO::Async::PID(3pm) User Contributed Perl Documentation IO::Async::PID(3pm)NAME
"IO::Async::PID" - event callback on exit of a child process
SYNOPSIS
use IO::Async::PID;
use POSIX qw( WEXITSTATUS );
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $kid = $loop->fork(
code => sub {
print "Child sleeping..
";
sleep 10;
print "Child exiting
";
return 20;
},
);
print "Child process $kid started
";
my $pid = IO::Async::PID->new(
pid => $kid,
on_exit => sub {
my ( $self, $exitcode ) = @_;
printf "Child process %d exited with status %d
",
$self->pid, WEXITSTATUS($exitcode);
},
);
$loop->add( $pid );
$loop->run;
DESCRIPTION
This subclass of IO::Async::Notifier invokes its callback when a process exits.
For most use cases, a IO::Async::Process object provides more control of setting up the process, connecting filehandles to it, sending data
to and receiving data from it.
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_exit $exitcode
Invoked when the watched process exits.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
pid => INT
The process ID to watch. Must be given before the object has been added to the containing "IO::Async::Loop" object.
on_exit => CODE
CODE reference for the "on_exit" event.
Once the "on_exit" continuation has been invoked, the "IO::Async::PID" object is removed from the containing "IO::Async::Loop" object.
METHODS
$process_id = $pid->pid
Returns the underlying process ID
$pid->kill( $signal )
Sends a signal to the process
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::PID(3pm)