I have completely blanked out on this and I have done it a million times. I need to modify some tables in unix. What is the command for opening/viewing the tables?
Thanks so much. :o (2 Replies)
I have a file (called CORE) that is a dump created by a crashing process. This file, I believe, is in "binary" form, so when I try to use cat, more, or vi on it, it has a bunch of garbage. Is there anything I can use to "read" or view this file just like I might a non-binary file? I am running... (2 Replies)
Hi,
Can someone help me figure out how to view directory content while I navigate directories (without having to go to the actual directory and "ls-ing" it)? Is there some keyboard shortcut for this? For instance, it would be useful if I could see the content of a directory when I'm copying... (2 Replies)
Hi,
I have a program that get a directory name from the user, then the program should go through one by one of the file, asking the user whether to move it to another folder. I tried to list the time of the file one by one. But it seems like it doesn't work. The code is as follow:
check()
{... (10 Replies)
Hey,
I know the head and tail function is to view like the top or bottom lines for each file. But lets say I want to view the top/bottom 100 or top/bottom 1000 for a file. whats the command that I use to do this?
thanks (2 Replies)
Hi all,
When I use BDF command on this particular server, it outputs mostly normal stuff. However, there is one directory it can't read at all.
Also, it doesn't seem to exist.
When I BDF my file system with a small panic script (it happens even if you use just the bdf command):
As you... (17 Replies)
I have a file name as logfiles_tar.tgz. How can I view the contents of the log files present in logfiles_tar.tgz ? Any help would be really appreciated.
Thanks (3 Replies)
What is the command line for viewing the sizes(lines and bytes)of all the files in your present working directory?
Is it
>ls -la (2 Replies)
Discussion started by: Payton2704
2 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)