perl

How to search a file for the last block of consecutive lines that contain a keyword in Perl

由 馋奶兔 提交于 2021-01-03 06:18:55
问题 Imagine a text file like below where <some random text> could be anything or nothing , implying the KEYWORD can appear anywhere in the line, alone or along with other text: 1 <some random text> 2 <some random text>KEYWORD<some random text> 3 <some random text>KEYWORD<some random text> 4 <some random text> 5 <some random text> 6 <some random text>KEYWORD<some random text> 7 <some random text> 8 <some random text>KEYWORD<some random text> 9 <some random text>KEYWORD<some random text> 10 <some

How to search a file for the last block of consecutive lines that contain a keyword in Perl

由 [亡魂溺海] 提交于 2021-01-03 06:18:38
问题 Imagine a text file like below where <some random text> could be anything or nothing , implying the KEYWORD can appear anywhere in the line, alone or along with other text: 1 <some random text> 2 <some random text>KEYWORD<some random text> 3 <some random text>KEYWORD<some random text> 4 <some random text> 5 <some random text> 6 <some random text>KEYWORD<some random text> 7 <some random text> 8 <some random text>KEYWORD<some random text> 9 <some random text>KEYWORD<some random text> 10 <some

Split string into a hash of hashes (perl)

由 随声附和 提交于 2021-01-01 09:24:28
问题 at the moment im a little confused.. I am looking for a way to write a string with an indefinite number of words (separated by a slash) in a recursive hash. These "strings" are output from a text database. Given is for example "office/1/hardware/mouse/count/200" the next one can be longer or shorter.. This must be created from it: { office { 1{ hardware { mouse { count => 200 } } } } } Any idea ? 回答1: Work backwards. Split the string. Use the last two elements to make the inner-most hash.

Split string into a hash of hashes (perl)

由 ↘锁芯ラ 提交于 2021-01-01 09:23:54
问题 at the moment im a little confused.. I am looking for a way to write a string with an indefinite number of words (separated by a slash) in a recursive hash. These "strings" are output from a text database. Given is for example "office/1/hardware/mouse/count/200" the next one can be longer or shorter.. This must be created from it: { office { 1{ hardware { mouse { count => 200 } } } } } Any idea ? 回答1: Work backwards. Split the string. Use the last two elements to make the inner-most hash.

How to remove these warnings in Perl? [closed]

由 ＊爱你＆永不变心＊ 提交于 2021-01-01 07:11:28
问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 months ago . Improve this question Here I am checking the max word width present in each columns my @col_lns; while (<file>) { my @row = split " ",$_; @col_lns = map ((length) @rows) if $. ==1; for ( my $col_l =0; $col_l <$#row; $col_l+=1) { my $col_ln = length $row[$col_l]; if ($col_lns[$col_l] < $col_ln) ##

CentOS 7.4——Apache应用之一，构建Web虚拟目录

由 99封情书 提交于 2020-12-31 14:30:18
目录 第一部分 准备工作 第二部分 安装Apache服务 第三部分 搭建虚拟目录（开放访问与授权认证访问） 第一部分 准备工作 一：服务器：Linux系统—CentOS 7.4； IP地址：192.168.80.10 客户端：以WIN7为例，测试验证结果，与服务器在同一网段； IP地址：192.168.80.2 二：下载压缩包 http://httpd.apache.org/download.cgi //http压缩包 http://apr.apache.org/download.cgi //http插件包 //apr-1.6.2.tar.gz和apr-util-1.6.0.tar.gz是httpd2.4以后的版本所需要的插件，必须安装 三：将防火墙与selinux关闭 第二部分 安装Apache服务 一：安装编译工具与插件 [root@localhost ~]# yum -y install \ gcc \ gcc-c++ \ make \ pcre-devel \ expat-devel \ perl 二：解压： [root@localhost ~]# tar xf apr-1.6.2.tar.gz [root@localhost ~]# tar xf apr-util-1.6.0.tar.gz [root@localhost ~]# tar xf httpd-2.4.29

How can I combine odd and even numbered lines?

由 戏子无情 提交于 2020-12-29 10:07:12
问题 I want to combine every even-numbered line with the line above it. Something like: Line one,csv,csv,csv Line two,csv,csv Line three,csv,csv,csv,csv Line four,csv The result should look like this: Line one,csv,csv,csv,Line two,csv,csv Line three,csv,csv,csv,csv,Line four,csv Any ideas how to achieve that in either Perl or sed/awk? 回答1: Perl's builtin variable $. will tell you the line number. $. % 2 will be 1 if $. is odd, and 0 otherwise. Here is a self-contained example; #!/usr/bin/perl use

How can I combine odd and even numbered lines?

由 本秂侑毒 提交于 2020-12-29 10:05:42
问题 I want to combine every even-numbered line with the line above it. Something like: Line one,csv,csv,csv Line two,csv,csv Line three,csv,csv,csv,csv Line four,csv The result should look like this: Line one,csv,csv,csv,Line two,csv,csv Line three,csv,csv,csv,csv,Line four,csv Any ideas how to achieve that in either Perl or sed/awk? 回答1: Perl's builtin variable $. will tell you the line number. $. % 2 will be 1 if $. is odd, and 0 otherwise. Here is a self-contained example; #!/usr/bin/perl use

How can I combine odd and even numbered lines?

由 流过昼夜 提交于 2020-12-29 10:04:28
问题 I want to combine every even-numbered line with the line above it. Something like: Line one,csv,csv,csv Line two,csv,csv Line three,csv,csv,csv,csv Line four,csv The result should look like this: Line one,csv,csv,csv,Line two,csv,csv Line three,csv,csv,csv,csv,Line four,csv Any ideas how to achieve that in either Perl or sed/awk? 回答1: Perl's builtin variable $. will tell you the line number. $. % 2 will be 1 if $. is odd, and 0 otherwise. Here is a self-contained example; #!/usr/bin/perl use

Gdata package perl issue

由 微笑、不失礼 提交于 2020-12-29 02:48:06
问题 I am attempting to follow this easy 2-minute video tutorial on importing an Excel spreadsheet into R as a data frame: http://www.screenr.com/QiN8 I followed each step, including downloading and installing Strawberry Perl (32-bit) on my Win 7 PC, pointing R to my working directory, and entering the following command in R: Spreadsheet <- read.xls("targetspreadsheet.xls") I receive this error: Error in findPerl(verbose = verbose) : perl executable not found. Use perl= argument to specify the
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