I have a question regarding running perl in the current process.
I shall demonstrate with an example.
Look at this.
sh-2.05b$ pwd
/tmp
sh-2.05b$ cat test.sh
#! /bin/sh
cd /etc
sh-2.05b$ ./test.sh
sh-2.05b$ pwd
/tmp
sh-2.05b$ . ./test.sh
sh-2.05b$ pwd
/etc
sh-2.05b$
So... (10 Replies)
I am trying to use a script to replace the header of each file, whose filename are stored within the array $test, using the sed command within a Perl script as follows:
$count = 0;
while ( $count < $#test )
{
`sed -e 's/BIOGRF 321/BIOGRF 332/g' ${test} > 0`;
`cat 0 >... (2 Replies)
so in unix this command works works and shows me a list of directories
find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt
but when i try running a perl script to run this command
my $query = 'find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt';... (2 Replies)
How can i print the output of a perl script on a unix console and redirect the same in a log file under same directory simultaneously ?
Like in Shell script, we use tee, is there anything in Perl or any other option ? (2 Replies)
Hi all,
Not sure if this should be in the programming forum, but I believe it will get more response under the Shell Programming and Scripting FORUM.
Am trying to write a customized df script in Perl and need some help with regards to using arrays and file handlers.
At the moment am... (3 Replies)
I am trying to run a perl script which needs input arguments from a parent perl script, but doesn't seem to work. Appreciate your help in this regard.
From parent.pl
$input1=123;
$input2=abc;
I tried calling it with
system("/usr/bin/perl child.pl $input1 $input2");
and
`perl... (1 Reply)
Hi Folks,
I have 2 perl scripts and I need to execute 2nd perl script from the 1st perl script in WINDOWS.
In the 1st perl script that I had, I am calling the 2nd script
main.pl
===========
print "This is my main script\n";
`perl C:\\Users\\sripathg\\Desktop\\scripts\\hi.pl`;
... (3 Replies)
Hi All,
I am aware that html tags can be embedded in cgi script as below.. In the same way is it possible to embed the below javascript in perl cgi script ??
print("<form action="action.htm" method="post" onSubmit="return submitForm(this.Submitbutton)">");
print("<input type = "text"... (1 Reply)
Not sure what I am doing wrong here, but I can print the list with no issue. Just a blank screen with the 'do'.
#!/usr/bin/perl
open FILE, "upslist.txt";
while ($line=<FILE>){
if ($line=~/^(.*?),(.*?)$/){
#print "ups:$1 string:$2\n";
do 'check_snmp_mgeups-0.1.pl -H $1 -C $2';
} ... (1 Reply)
I have reviewed many examples on-line about running another process (either PERL or shell command or a program), but do not find any usefull for my needs way. (Reviewed and not useful the system(), 'back ticks', exec() and open())
I would like to run another PERL-script from first one, not... (1 Reply)
Discussion started by: alex_5161
1 Replies
LEARN ABOUT MOJAVE
dbd::gofer::transport::corostream
DBD::Gofer::Transport::corostream(3) User Contributed Perl Documentation DBD::Gofer::Transport::corostream(3)NAME
DBD::Gofer::Transport::corostream - Async DBD::Gofer stream transport using Coro and AnyEvent
SYNOPSIS
DBI_AUTOPROXY="dbi:Gofer:transport=corostream" perl some-perl-script-using-dbi.pl
or
$dsn = ...; # the DSN for the driver and database you want to use
$dbh = DBI->connect("dbi:Gofer:transport=corostream;dsn=$dsn", ...);
DESCRIPTION
The BIG WIN from using Coro is that it enables the use of existing DBI frameworks like DBIx::Class.
KNOWN ISSUES AND LIMITATIONS
- Uses Coro::Select so alters CORE::select globally
Parent class probably needs refactoring to enable a more encapsulated approach.
- Doesn't prevent multiple concurrent requests
Probably just needs a per-connection semaphore
- Coro has many caveats. Caveat emptor.
STATUS
THIS IS CURRENTLY JUST A PROOF-OF-CONCEPT IMPLEMENTATION FOR EXPERIMENTATION.
Please note that I have no plans to develop this code further myself. I'd very much welcome contributions. Interested? Let me know!
AUTHOR
Tim Bunce, <http://www.tim.bunce.name>
LICENCE AND COPYRIGHT
Copyright (c) 2010, Tim Bunce, Ireland. All rights reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.
SEE ALSO
DBD::Gofer::Transport::stream
DBD::Gofer
APPENDIX
Example code:
#!perl
use strict;
use warnings;
use Time::HiRes qw(time);
BEGIN { $ENV{PERL_ANYEVENT_STRICT} = 1; $ENV{PERL_ANYEVENT_VERBOSE} = 1; }
use AnyEvent;
BEGIN { $ENV{DBI_TRACE} = 0; $ENV{DBI_GOFER_TRACE} = 0; $ENV{DBD_GOFER_TRACE} = 0; };
use DBI;
$ENV{DBI_AUTOPROXY} = 'dbi:Gofer:transport=corostream';
my $ticker = AnyEvent->timer( after => 0, interval => 0.1, cb => sub {
warn sprintf "-tick- %.2f
", time
} );
warn "connecting...
";
my $dbh = DBI->connect("dbi:NullP:");
warn "...connected
";
for (1..3) {
warn "entering DBI...
";
$dbh->do("sleep 0.3"); # pseudo-sql understood by the DBD::NullP driver
warn "...returned
";
}
warn "done.";
Example output:
$ perl corogofer.pl
connecting...
-tick- 1293631437.14
-tick- 1293631437.14
...connected
entering DBI...
-tick- 1293631437.25
-tick- 1293631437.35
-tick- 1293631437.45
-tick- 1293631437.55
...returned
entering DBI...
-tick- 1293631437.66
-tick- 1293631437.76
-tick- 1293631437.86
...returned
entering DBI...
-tick- 1293631437.96
-tick- 1293631438.06
-tick- 1293631438.16
...returned
done. at corogofer.pl line 39.
You can see that the timer callback is firing while the code 'waits' inside the do() method for the response from the database. Normally
that would block.
perl v5.18.2 2013-04-04 DBD::Gofer::Transport::corostream(3)