Hi,
I'm a total beginner at awk and hope someone can advise what I have done wrong in the following script:
I have a file which (to simplify things) may be something like this
Fred Smith and Sue Brown
Joe Jones and Jane Watts
Sally Green and Jim O?
Connor
Freda O?
Reiley and Pat O?... (2 Replies)
Trying to write an if statement, which calls2 or 3 functions from within it.
code:
{if (($34 != "") && (NR != 1) && ($1 != "F"))
less_than(34, 0, "S1002a")
is_number(34,"S1002a")
}
But this is only treating the first function call, as part of the if.
and always executes is_number.... (1 Reply)
Hello,
I'm trying to use awk to print lines that match a regular expression.
I am using awk to print a record only if it contains N/A.
awk '/N/A/ {print $1}'
When executed the script returns "awk syntax error near line 1".
If I use /N//A/ it prints all records containing a "/", not... (2 Replies)
I have a file
CREATE TABLE DDD_EXT --- 1000
(
val u1
val u1
);
CREATE TABLE dsdasd_EXT --- 1323
(
val u1
val u1
);
CREATE TABLE AAAAAA_EXT --- 1222
(
val u1
val u1
);
CREATE TABLE E_EXT --- 11
(
val u1
val u1 (2 Replies)
Hi,
Probably a very weak question.. but I have tried all I know..
BPC0001:ANNUL_49542 0.0108 -0.0226 -0.0236 0.0042 0.0033 -0.0545 0.0376 0.0097 -0.0093 -0.032 Control
BPC0002:ANNUL_49606 0.0190 -0.0142 -0.0060 -0.0217 -0.0027 ... (3 Replies)
Hi,
let's assume i have an output below:
orgauser 23826 :E:Validity
senerse 2096
senerse 2111
senerse 21585
senerse 21596
root 12653 -bash
root 17262
root 17278
Some lines have not any string in their third column. I don't want to see those lines. i just want to see the lines... (3 Replies)
Can anyone tell me please what the "+" is doing in this awk command?
find / -user smith -type f -ls | awk '{ sum += $7 } END {print sum }'
Thanks,
George (2 Replies)
Hi All,
A very silly question:
How to just print the integer attached a particular string in a line by awk?
Ex:
Happy_world_foo123...So i just want the value 123 to be printed on the line where we have string "foo".
Thanks (16 Replies)
I have what a think is a simple question but I'm just a beginner in scripting. I'm my unix command line I run a date command that returns the following:
Wed Apr 3 10:39:30 EDT 2013
How do I awk out the "10" only in awk? Or is awk the way to do it or is there a better way? (7 Replies)
Here is an awk line I have in a bigger script that checks to see if nimsh process is running and does couple other things based on the output and runs on all servers.
ps -ef|grep -i nimsh|awk '{print $9}' and I am expecting output to be "/usr/sbin/nimsh"
I find that on some servers... (4 Replies)
Discussion started by: kvosu
4 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)