perl

问题 I'm building a Python program that also runs a Perl script from within. Is there a way to create an executable where the user of my program doesn't have to install Perl but has Python? 回答1: Here is an example of how you can use pp to build an executable (that does not depend on the perl executable being installed). I am using perlbrew with perl version 5.30 on Ubuntu 20.04. First install pp : cpanm PAR::Packer Create a test Perl script hello.pl (you may need to install Path::Tiny first): use

问题 I have the following code I am using to understand creating a windows service with Perl. The following parts work: install, remove, start, stop, continue, pause, but the run section is only called once. Can someone take a look and tell me what I am missing? I have tried registering for timer but that doesn't get called at all. I have tried this on several different machines (windows 7 and 10) and I get the same behavior. use Win32::Daemon; use Getopt::Long; Win32::Daemon::RegisterCallbacks( {

问题 I need to take value from a table cell and it is identifying the element but not fetching the value out of it. I've tried: $driver-> get_text('xpath') and also $driver->find_element('xpath').get_text(); None of these are working here. HTML: <td class="status"> <span class=" jira-issue-status-lozenge aui-lozenge jira-issue-status-lozenge-blue-gray jira-issue-status-lozenge-new aui-lozenge-subtle jira-issue-status-lozenge-max-width-medium" data-tooltip="<span class="jira-issue-status-tooltip

问题 I need to take value from a table cell and it is identifying the element but not fetching the value out of it. I've tried: $driver-> get_text('xpath') and also $driver->find_element('xpath').get_text(); None of these are working here. HTML: <td class="status"> <span class=" jira-issue-status-lozenge aui-lozenge jira-issue-status-lozenge-blue-gray jira-issue-status-lozenge-new aui-lozenge-subtle jira-issue-status-lozenge-max-width-medium" data-tooltip="<span class="jira-issue-status-tooltip

问题 I am able to start a Win32 service successfully on Windows 10 (Strawberry perl version 5.30.1) using the follwing script: package Win32::XYZService; use feature qw(say); use strict; use warnings; use File::Spec; use Win32; use Win32::Daemon; { die "Bad arguments" if @ARGV != 1; my $action = shift @ARGV; my $xyz = Win32::XYZService->new(); $xyz->action( $action ); } sub new { my ( $class, %args ) = @_; $args{name} = 'xyz_service2'; my ($bin, $scriptname) = Win32::GetFullPathName( $0 ); $args

问题 Background - I want to extract specific columns from a csv file. The csv file is comma delimited, uses double quotes as the text-qualifier (optional, but when a field contains special characters, the qualifier will be there - see example), and uses backslashes as the escape character. It is also possible for some fields to be blank. Example Input and Desired Output - For example, I only want columns 1, 3, and 4 to be in the output file. The final extract of the columns from the csv file

问题 Background - I want to extract specific columns from a csv file. The csv file is comma delimited, uses double quotes as the text-qualifier (optional, but when a field contains special characters, the qualifier will be there - see example), and uses backslashes as the escape character. It is also possible for some fields to be blank. Example Input and Desired Output - For example, I only want columns 1, 3, and 4 to be in the output file. The final extract of the columns from the csv file

问题 Currently i take today date using below.I need to get yesterday date using this.. how can i get that ? my $today = `date "+%Y-%m-%d"`; 回答1: If you want yesterday's date: use DateTime qw( ); my $yday_date = DateTime ->now( time_zone => 'local' ) ->set_time_zone('floating') ->truncate( to => 'days' ) ->subtract( days => 1 ) ->strftime('%Y-%m-%d'); For example, in New York, at 2019-05-14 01:00:00, it will give 2019-05-13. For example, in New York, at 2019-11-04 00:00:00, it will give 2019-11-03.

问题 Currently i take today date using below.I need to get yesterday date using this.. how can i get that ? my $today = `date "+%Y-%m-%d"`; 回答1: If you want yesterday's date: use DateTime qw( ); my $yday_date = DateTime ->now( time_zone => 'local' ) ->set_time_zone('floating') ->truncate( to => 'days' ) ->subtract( days => 1 ) ->strftime('%Y-%m-%d'); For example, in New York, at 2019-05-14 01:00:00, it will give 2019-05-13. For example, in New York, at 2019-11-04 00:00:00, it will give 2019-11-03.

问题 I have a utility that can parse the attributes within a large xml tag, such as <mytag name="value" name="value"../> I have written the utility in perl. It uses basic non-greedy text matching, like this: while(<XML>) { if (/name=\"(.+?)\"/) { print("Value is: $1\n"); } I know the names of the name/value pairs I want to extract, so I hardcode them into the utility. This works for me quite well...how can I do this in bash? I have tried using awk but it is not working for when I have an attribute