Hi,
I have a script abc.sql which contains a word 'timestamp'.
I have another script xyz.txt genrated everyweek, which has a new timestamp value every week.
How do I replace the word 'timestamp' in script abc.sql with the value mentioned in the script xyz.txt, so that I can run the script... (3 Replies)
hey all,
i was just wondering if it was possible to to get data from user input , and parse it through sed to remove or add what that user has entered into a flat file?
do i need awk ?
any help is greatly appreciated
~shan2on (2 Replies)
in shell scripting there is extensive usage of
i> regular expression
ii>sed
iii>awk
can anyone tell me the suitable contexts ...i mean which one is suitable for what kind of operation.
like the reg-exp and sed seems to be doing the same job..i.e pattern matching (1 Reply)
I need to change all Newline caracters (\12) to Fieldseparator(\34).
tr -A '\12' '\34' <file1> file2
Replace all delete (\177) with Newline (\12)
tr -A '\177' '\12' <file2> file3
Put the name of the file first in all rows.
awk '{printf "%s\34%s\n", FILENAME,$0} file3 > file4
So far no... (6 Replies)
Hi,
I have some files being sent to me that have dates in them in this format:
from
1/8/2011 15:14:20
and I need the dates in this format (mysql date format)
To
2011-01-08 15:14:20
all I have so far is the regexp that detects the format:
sed -r -e 's@\1/\2/\3\4\5\6]::$@do... (7 Replies)
I am using a variable called $variable in a pattern search to print from a starting variable to a constant value. the variable search should be case in sensitive.
i tired using Ip at the end in the below command. but in ksh it is not working.
sed -n "/$variable/,/constant/p" file
i also... (11 Replies)
I need to create a script to change a file depending of 3 conditions using a target as parameter...
first condition
<chamada>
<numeroTerminalOriginador>CALLER</numeroTerminalOriginador>
<imeiOriginador></imeiOriginador>
<cgiPrimeiraErbOriginador></cgiPrimeiraErbOriginador>... (2 Replies)
Hi evrybody
For those who are bored I suggest exercise for tail :)
There is "csv" string:
A,B,C,D,E,G
Desired output:
| (A) A | (A,B) B | (A,B,C) C | (A,B,C,D) D | (A,B,C,D,E) E | G
There are no whitespace characters at the beginning and end of the line. (7 Replies)
Discussion started by: nezabudka
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)