perl

Python use regex match object in if statement and then access capture groups like Perl

由 江枫思渺然 提交于 2020-12-06 05:44:20
问题 Is it possible to do something like the following Perl code in Python? From what I can tell the answer is no, but I figured I'd double check. The Perl code I want to replicate in Python: #!/usr/bin/perl my $line = "hello1234world"; if($line=~/hello(.*)world/) { print($1); } #prints 1234 The following is the closest stylistically I can think off, but when running I (obviously) get the following error: import re line = "hello1234world" if matchObj = re.match(r'hello(.*)world',line): print

Python use regex match object in if statement and then access capture groups like Perl

由 大兔子大兔子 提交于 2020-12-06 05:43:31
问题 Is it possible to do something like the following Perl code in Python? From what I can tell the answer is no, but I figured I'd double check. The Perl code I want to replicate in Python: #!/usr/bin/perl my $line = "hello1234world"; if($line=~/hello(.*)world/) { print($1); } #prints 1234 The following is the closest stylistically I can think off, but when running I (obviously) get the following error: import re line = "hello1234world" if matchObj = re.match(r'hello(.*)world',line): print

Python use regex match object in if statement and then access capture groups like Perl

由 爷，独闯天下 提交于 2020-12-06 05:43:29
问题 Is it possible to do something like the following Perl code in Python? From what I can tell the answer is no, but I figured I'd double check. The Perl code I want to replicate in Python: #!/usr/bin/perl my $line = "hello1234world"; if($line=~/hello(.*)world/) { print($1); } #prints 1234 The following is the closest stylistically I can think off, but when running I (obviously) get the following error: import re line = "hello1234world" if matchObj = re.match(r'hello(.*)world',line): print

Python use regex match object in if statement and then access capture groups like Perl

由 萝らか妹 提交于 2020-12-06 05:42:06
问题 Is it possible to do something like the following Perl code in Python? From what I can tell the answer is no, but I figured I'd double check. The Perl code I want to replicate in Python: #!/usr/bin/perl my $line = "hello1234world"; if($line=~/hello(.*)world/) { print($1); } #prints 1234 The following is the closest stylistically I can think off, but when running I (obviously) get the following error: import re line = "hello1234world" if matchObj = re.match(r'hello(.*)world',line): print

Calling a Perl Module which is Installed in different path/directory

由 删除回忆录丶 提交于 2020-12-06 04:27:08
问题 I am writing a Perl script which does - SSH to one of the server and do some operation using Net::OpenSSH Perl Module. I want to have entire log of the script to be stored in certain log file using Log::Log4perl Perl Module. I want to write some data to CSV file using Text::CSV Perl Module. Actually these three Perl Modules have been installed in different directories. Lets say - Net::OpenSSH is installed in /path/to/lib1 Log::Log4perl is installed in /path/to/lib2 Text::CSV is installed in

CentOS7安装MySQL（完整版）

由 ﹥＞﹥吖頭↗ 提交于 2020-12-05 12:07:55
<div class="htmledit_views" id="content_views"> <p> </p> <p><span style="color:#000000;">在CentOS中默认安装有MariaDB，这个是MySQL的分支，但为了需要，还是要在系统中安装MySQL，而且安装完成之后可以直接覆盖掉MariaDB。</span></p> <p> </p> <h3>1 下载并安装MySQL官方的 Yum Repository</h3> <pre class="has"><code class="language-swift">[root@localhost ~]# wget -i -<span class="hljs-built_in">c</span> http:<span class="hljs-comment">//dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm</span></code></pre> <p> </p> <p><span style="color:#000000;">  使用上面的命令就直接下载了安装用的Yum Repository，大概25KB的样子，然后就可以直接yum安装了。</span></p> <pre class="has"><code class=

Passing arguments to a perl package while using it

由 浪子不回头ぞ 提交于 2020-12-05 08:40:04
问题 How to pass some arguments while using a package, for example: use Test::More tests => 21; I wasn't able to find any valuable documentation about this featue. Are there any pros and cons of passing such arguments? 回答1: use My::Module LIST does two things: 1) It requires My::Module ; and 2) Invokes My::Module->import(LIST). Therefore, you can write your module's import routine to treat the list of arguments passed any which way you want. This becomes even easier if you are indeed writing an

Passing arguments to a perl package while using it

由 青春壹個敷衍的年華 提交于 2020-12-05 08:37:29
问题 How to pass some arguments while using a package, for example: use Test::More tests => 21; I wasn't able to find any valuable documentation about this featue. Are there any pros and cons of passing such arguments? 回答1: use My::Module LIST does two things: 1) It requires My::Module ; and 2) Invokes My::Module->import(LIST). Therefore, you can write your module's import routine to treat the list of arguments passed any which way you want. This becomes even easier if you are indeed writing an

PHP 霸主地位被动摇，JIT 是穷途末路后的绝地反击？

由 会有一股神秘感。 提交于 2020-12-05 00:47:36
原文出自 https://my.oschina.net/editorial-story/blog/1604717 TIOBE 2017 年度编程语言榜单已 出炉 ，世界上最好的语言 PHP 再度无缘年度编程语言。 距离其上次（2004 年）获得年度编程语言，已有 13 年之久。而从历年 TIOBE 编程排行榜趋势图也可以看到，自 2014 年以来，PHP 总体处于持续下滑趋势。 作为世界上最好的语言，PHP 的霸主地位会被撼动吗？ 据 W3Techs.com 的数据显示，近年来，有超过 80% 的网站在服务器端的编程语言选择了 PHP，一门语言流行的背后必会有其原因，PHP 一开始凭借其简单上手而流行起来，而持续流行了这么多年，我们相信不仅仅是由于它的易于使用，作为一门服务器端的语言，如果性能没有足够好，很难一直被流行至今。 下面，我们不妨回顾下 PHP 的性能是如何演进的。 PHP 的性能演进历史 PHP 是 Web 开发最常用的语言，自 1994 年 Rasmus Lerdorf 创建 PHP 以来，PHP 语言经历了许多激烈的改进，其中性能是开发人员在评估新版本时考虑的主要标准之一。每个大版本的更新都会带来很多新特性和性能提升。 有关 PHP 性能改进的主要版本历史： 1994：Rasmus Lerdorf 为了维护个人网页而制作了一个简单的用 Perl 语言编写的程序，称为

7种DevOps工程师必备技能

由 耗尽温柔 提交于 2020-12-05 00:45:42
应用DevOps的目的是改变和改善开发与IT运营之间的关系，倡导两个部门之间更好的沟通与协作。虽然这看起来有些简单，然后，DevOps工程师还需要做更多的工作，才能成功部署代码，并将Dev和Ops两个部分成功地绑定在一起。 从应付DevOps压力的角度出发，DevOps工程师除了需要日常技能的基础，每个工程师都必须具备多种技能。DevOps工程师除了要对脚本和编码有着强烈的热情之外，还必须具有开放的思想和协作精神，才能成功地执行该过程。 “DevOps教练”参考一些文献，已经为你设计了一个清单，列出了下面的7种必备技能，公司的DevOps工程师的招聘需求里，应该明确提出下列所有品质。 1. 灵活性 编码是一个持续的过程，不断变化，总是需要更新。要成为一个成功而有效的DevOps工程师，理想的候选人必须有能力不断地开发新的系统，并将其集成到主干代码中。DevOps工程师必须具有灵活的工作技能并适应不断变化的代码。 无论是集成、测试、发布还是部署，工程师都必须能够轻松地从一个软件构建领域迁移到另一个领域。例如，持续集成需要具备快速有效地管理变更的技术技能，并且能够在团队中协作，以保证每个人都朝着共同的目标努力。 2. 安全技能 与许多其他所熟练的领域一样，安全始终是最重要的，尤其是在编码方面。黑客进入系统的一个简单方法是利用漏洞，破坏现有的系统并获取数据。
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