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1 Strings in Perl: quoted, interpolated and escaped
https://perlmaven.com/quoted-interpolated-and-escaped-strings-in-perl
Strings placed between double quotes " provide interpolation (other variables embedded in the string will be replaced by their content), and ...
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2 Perl | Quoted, Interpolated and Escaped Strings
https://www.geeksforgeeks.org/perl-quoted-interpolated-and-escaped-strings/
Double-quoted strings are interpolated i.e. variable names (scalars, arrays, and hashes) are replaced by their original values and escape ...
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3 Quoting strings in Perl - even ones containing apostrophes ...
https://www.perl.com/article/7/2013/3/30/Quoting-strings-in-Perl-even-ones-containing-apostrophes-and-quote-or-speech-marks/
Broadly speaking Perl has two types of strings: quotes that are interpolated at runtime and literal quotes that are not interpolated.
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4 Interpolation in Perl
http://perlmeme.org/howtos/using_perl/interpolation.html
In Perl, any string that is built with double quotes (or something meaning double quotes) will be interpolated. That is, any variable or escaped char that ...
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5 quotes in Perl - PerlMonks
https://www.perlmonks.org/?node_id=401006
In any interpolating quotation scheme, such as double-quotes (or qq and interpolating uses of <<, as described below), @ and $ characters must ...
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6 Interpolating Functions Inside Double-Quoted Strings
https://users.cs.cf.ac.uk/dave/PERL/node64.html
You can use references to force Perl to interpolate the return value of a function call inside double-quoted strings. This helps to reduce the number of ...
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7 Quoting Operators
https://www.stat.berkeley.edu/~spector/extension/perl/notes/node23.html
The qq operator, like double quotes, provides variable interpolation, while the q operator does not. You can use these operators to create strings ...
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8 Interpolating Functions and Expressions Within Strings - O'Reilly
https://www.oreilly.com/library/view/perl-cookbook/1565922433/ch01s11.html
When you absolutely must have interpolation, you need the punctuation-riddled interpolation from the Solution. Only @ , $ , and \ are special within double ...
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9 Interpolate and double quote : Quotations « String « Perl
http://www.java2s.com/Code/Perl/String/Interpolateanddoublequote.htm
36. Using backslash for double quote ; 37. Using qq for quote ; 38. Using qw to assign value to scalar ; 39. Using qw to create string array without quotation ...
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10 Single and Double Quotes in Perl - Tutorialspoint
https://www.tutorialspoint.com/single-and-double-quotes-in-perl
Single and Double Quotes in Perl - You can use double quotes or single quotes around literal strings as follows −Example Live Demo#!
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11 Perl Programming/Strings - Wikibooks, open books for an ...
https://en.wikibooks.org/wiki/Perl_Programming/Strings
Interpolation in double-quoted stringsEdit ; String, Interpolated As ; \\, an actual, single backslash character ; \$, a single $ character ; \@, a single @ ...
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12 What is array interpolation in Perl 5.3.4? - Educative.io
https://www.educative.io/answers/what-is-array-interpolation-in-perl-534
Interpolation in Perl refers to the process where the respective values replace the variable names. It is commonly used inside double-quoted strings.
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13 print @ in quotes in perl - Stack Overflow
https://stackoverflow.com/questions/51529209/print-in-quotes-in-perl
One of the mottos of the Perl community is "there's more than one way to do it". In this case there are many ways to achieve what you're trying to do, each ...
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14 CS10100 Perl Text Handling
https://www.classes.cs.uchicago.edu/archive/2009/winter/10100-1/html/perl/perl_text.html
Strings in double quotation marks are more flexible: they allow variable interpolation and escape sequences. Variable Interpolation. Any scalar variable, array, ...
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15 Perl Language Tutorial => Double-quoting
https://riptutorial.com/perl/example/6492/double-quoting
Double-quoted strings use interpolation and escaping – unlike single-quoted strings. To double-quote a string, use either double quotes " or the qq operator.
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16 Strings - Perl 101
https://perl101.org/strings.html
Double-quoted strings can interpolate other variables inside. my $name = "Inigo Montoya"; my ...
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17 perlop - Perl operators and precedence - Perldoc Browser
https://perldoc.perl.org/perlop
They includes variables, quote and quote-like operators, any expression in ... back-quotes do I<NOT> interpolate within double quotes, nor do single quotes ...
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18 Picking Up Perl: Interpolation in Double-quoted Strings
https://www.linuxtopia.org/online_books/perl/pickingUpPerl_19.html
2.1.3.1 Interpolation in Double-quoted Strings ; String, Interpolated As ; `\\' an actual, single backslash character ; `\$' a single $ character ; `\@' a single @ ...
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19 Quote::Code - quoted strings with arbitrary code interpolation
https://metacpan.org/pod/Quote::Code
If you need a literal { in a qc string, you can escape it with a backslash ( \{ ) or interpolate code that yields a left brace ( {'{'} ).
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20 82.562: Perl Strings - FIT VUT
https://www.fit.vutbr.cz/~koci/tutorials/perl-1/interp.html.cs
Not only that, the Perl processor will interpolate (substitute) the value of variables into double-quote delimited strings whenever the string is ...
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21 Picking Up Perl - Working with Scalars - ebb.org
http://www.ebb.org/PickingUpPerl/pickingUpPerl_3.html
You need not use only the octal values when interpolating @acronym{ASCII} characters into double-quoted strings. You can also use the hexadecimal values. Here ...
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22 Perl uses single or double quotes to surround a
http://dev.fyicenter.com/Interview-Questions/Perl/Perl_uses_single_or_double_quotes_to_surround_a_.html
1. The double-quoted string will perform variable interpolation on its contents. That is, any variable references inside the quotes will be replaced by the ...
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23 Quoting Variables - Perl Refreshments - Web Mechanic
https://www.softouch.on.ca/perl/quotes1.html
Think 'substitute' when you see the word 'interpolate'. So when you use double-quotes or the other interpolatable (is that a word?) quote methods above, ...
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24 This file is part of the Perl 6 Archive
https://raku.org/archive/rfc/328.html
Camel III (page 7) says "Double quotation marks (double quotes) do variable interpolation and backslash interpolation while single quotes suppress ...
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25 Quote-like Expressions (GNU gettext utilities)
https://www.gnu.org/software/gettext/manual/html_node/Quote_002dlike-Expressions.html
15.5.21.4 What are Strings And Quote-like Expressions? Perl ... If it is enclosed in double quotes or has no quotes at all, the string is interpolated.
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26 Simple variable interpolation
https://cran.r-project.org/web/packages/GetoptLong/vignettes/variable_interpolation.html
In Perl, we always use variable interpolation to construct complex strings in ... with the same name in Perl (It stands for double quote).
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27 Perl string - working with strings in Perl - ZetCode
https://zetcode.com/perl/string/
We use the (\) character to escape additional quotes. Normally the double quote character is used to delimit a string literal. However, when ...
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28 Perl and Python one-liners in bash, cmd, and PowerShell
https://www.johndcook.com/blog/2020/12/14/shells-quoting-and-one-liners/
This is particularly puzzling since PowerShell follows basically the same quoting rules as bash: double quotes interpolate but single quotes ...
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29 Perl String - Perl Tutorial
https://www.perltutorial.org/perl-string/
It is important to remember that the double-quoted string replaces variables inside it by their values, while the single-quoted string treats them as text. This ...
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30 Simple variable interpolation in R
http://cran.nexr.com/web/packages/GetoptLong/vignettes/variable_interpolation.html
... the subroutine with the same name in Perl (It stands for double quote). Using variable interpolation, above example can be written as:
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31 Strings - Manual - PHP
https://www.php.net/manual/en/language.types.string.php
To specify a literal single quote, escape it with a backslash ( \ ). To specify a literal backslash, double it ( \\ ). All other instances of backslash will be ...
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32 String interpolation - Wikipedia
https://en.wikipedia.org/wiki/String_interpolation
For example, in Unix shells, single-quoted strings are raw, while double-quoted strings are interpolated. Placeholders are usually represented by a bare or ...
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33 Day 16 – Quoting on Steroids | Raku Advent Calendar
https://perl6advent.wordpress.com/2014/12/16/quoting-on-steroids/
All that for simply doing a double quoted string with interpolation? Well, because people are using double quoted strings a lot, the simple “ ...
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34 string interpolation preserving quotes in bash
https://unix.stackexchange.com/questions/652503/string-interpolation-preserving-quotes-in-bash
Trying to find a way via shopt or something so the json string is substituted correctly in bash script but preserves/puts back the double quotes ...
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35 Perl string quotation operators (q, qq, qr and qx)
https://www.webtrafficexchange.com/perl-string-quotation-operators-q-qq-qr-and-qx
The difference between the single quote and double quote is interpolation. Double quote allows string to be replaced with the value of that ...
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36 Strings - Julia Documentation
https://docs.julialang.org/en/v1/manual/strings/
String literals are delimited by double quotes or triple double quotes: ... Julia allows interpolation into string literals using $ , as in Perl:
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37 Perl, Efficiency: single vs double quote
http://computer-programming-forum.com/53-perl/03b9a59a101826ee.htm
expand. Obviously when the string must be interpolated, double quotes are appropriate, but when no interpolation is needed/desired, is single ...
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38 Escaping strings in Bash using !:q - Hacker News
https://news.ycombinator.com/item?id=24659282
Rule of thumb, single q for single quote string (non-interpolating normally), and two q's for a double quote string (normally interpolates).
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39 Perl String Escape Sequences - BeginnersBook
https://beginnersbook.com/2018/03/perl-string-escape-sequences/
As we already know that when we place the special characters inside double quote strings then perl tries to interpolate it. In the following example if we ...
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40 PERL PowerShell: String Interpolation - Brandon's Notepad
https://brandonsnotepad.wordpress.com/2021/09/30/perl-%E2%9E%99-powershell-string-interpolation/
String interpolation is an extremely handy feature that is available in many programming languages. It allows you to build strings with ...
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41 Strings and quoting methods - Perl - DevTut
https://devtut.github.io/perl/strings-and-quoting-methods.html
Double-quoted strings use interpolation and escaping – unlike single-quoted strings. To double-quote a string, use either double quotes " or the qq operator.
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42 5.1. Quoting Variables
https://tldp.org/LDP/abs/html/quotingvar.html
When referencing a variable, it is generally advisable to enclose its name in double quotes. This prevents reinterpretation of all special characters within ...
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43 Shell escaping in Perl - The Research Lab
https://www.research-lab.ca/2014/03/shell-escaping-in-perl/
Double quotes: Double-quoted strings require escaping of only a few characters. · Single quotes: Single-quoted strings require no escaping at all ...
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44 Perl 5.30 fixes single quoted qr” with \N{} – The Effective Perler
https://www.effectiveperlprogramming.com/2019/09/single-quoted-qr-slash-n/
my $string = '\ABuster\s+' ;. 02, say "String: $string" ;. 03. 04, # will interpolate. 05, my $double = qr/ $string /;. 06, say "Double: $double ...
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45 PEP 502 – String Interpolation - Extended Discussion
https://peps.python.org/pep-0502/
scalars say "Hello { @names.join(', ') } how are you?"; # Perl 6 version. Explicit interpolation within double quotes.
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46 Perl Scalars - The WDVL
https://www.cs.helsinki.fi/u/hahonen/uusmedia/sisalto/cgi_perl_ssi/perltutor/perl_scalars.html
This is because they were "interpolated" since we included them within double-quotes in the definition of $sentence. There is no interpolation inside single ...
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47 Reference: q/string/ (Perl in a Nutshell) - e-Reading Library
http://www.e-reading.by/htmbook.php/orelly/perl2/perlnut/c05_115.htm
Generalized forms of quoting. q// is equivalent to using single quotes (literal, no variable interpolation). qq// is equivalent to double quotes (literal, ...
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48 Interpolation.pdf
http://www.cs.rpi.edu/courses/fall01/perl/Interpolation.pdf
escapes, escape sequences. • When any of these sequences are found inside a double – quoted string, they're interpolated. • Listed on page 61 of Prog. Perl.
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49 Using Variables, Expressions, Wildcards, and String ...
https://docs.oracle.com/cd/E23389_01/doc.11116/e21038/conditions.htm
A string literal is enclosed by either single quotation marks ( ' ) or double quotation marks ( " ). When single quotation marks enclose a string literal, the ...
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50 Sigils - The Elixir programming language
https://elixir-lang.org/getting-started/sigils.html
Interpolation and escaping in string sigils ... The following escape codes can be used in strings and char lists: ... In addition to those, a double quote inside a ...
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51 Perl String - Javatpoint
https://www.javatpoint.com/perl-string
In single quote, all the characters are interpreted as it is. Double quote provides interpolation. Means other variables present inside the string will ...
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52 Recipe 1.15 Interpolating Functions and Expressions Within ...
https://etutorials.org/Programming/Perl+tutorial/Chapter+1.+Strings/Recipe+1.15+Interpolating+Functions+and+Expressions+Within+Strings/
When you absolutely must have interpolation, you need the punctuation-riddled interpolation from the Solution. Only @, $, and \ are special within double quotes ...
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53 java integer to binary string with leading zeros - O2B Kids
https://o2bkids.com/xuf1csea/java-integer-to-binary-string-with-leading-zeros
An unquoted identifier works like double quotes. ... Single quotes indicate the text is to be treated literally with no interpolation of its content. Perl ...
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54 Perl Tutorial - Yaldex
http://www.yaldex.com/perl-tutorial/0596003137_perlckbk2-chp-1-sect-15.html
When you absolutely must have interpolation, you need the punctuation-riddled interpolation from the Solution. Only @, $, and \ are special within double quotes ...
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55 CSC447
https://condor.depaul.edu/ichu/csc447/notes/wk1/notes01.htm
Scalars. A scalar in Perl is any one value: number, string or reference. ... Double-quotes strings allow variable interpolation (substitution).
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56 Python Single vs. Double Quotes - Which Should You Use ...
https://betterdatascience.com/python-single-vs-double-quotes/
Use double quotes for text and string interpolation. · Use double quotes when there's a quotation inside a string - you can easily surround the ...
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57 Programming Course - Scalar Data (3)
https://bip.weizmann.ac.il/education/course/prog/scalar_data/3.html
If you wish to have a literal double quote inside your string, precede it with a backslash (\"). Same thing if you want to have a literal backslash (\\).
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58 Powershell and Single vs Double Quotes - TheGeekery
http://jon.netdork.net/2015/09/08/powershell-and-single-vs-double-quotes/
In this simple example over 100 string itterations, and no variable inclusions, you can see that double quotes is just over double the execution ...
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59 perlop -- Perl operators and precedence - MKS Toolkit
https://www.mkssoftware.com/docs/man5/perlop.5.asp
This operators quotes--and compiles--its STRING as a regular expression. STRING is interpolated the same way as PATTERN in m/PATTERN/. If "'" is used as the ...
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60 Working with strings - Nushell
https://www.nushell.sh/book/working_with_strings.html
Backtick string, `[^\n]+`, None ; Double-quoted string, "The\nEnd", C-style backslash escapes ; Bare string, ozymandias, None ; Single-quoted interpolation, $' ...
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61 Style number assumptions for LexPerl variable interpolation
https://groups.google.com/g/scintilla-interest/c/0nRvkE_WO-E
Style number assumptions for LexPerl variable interpolation. 30 views ... the various quote[-like] operator strings: ... for double-quoted strings only):
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62 Perl::Critic::Policy::ValuesAndExpressions - Arch manual pages
https://man.archlinux.org/man/community/perl-perl-critic/Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters.3pm.en
With the obvious exception of using single-quotes to prevent interpolation, using quotes with the quote-like operators kind of defeats the purpose of them ...
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63 'Possible unintended interpolation' warning does not occur ...
https://github.com/Perl/perl5/issues/19286
@ is not a metacharacter, this is not in double-quoted context, and @$ is not a special perl variable anyway. Why does this match, and why is ...
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64 Perl qq/STRING/ Function - mpihowto.com
http://mpihowto.com/index.php/perl/perl-built-in-functions/perl-scalar-and-string-functions/perl-qq-string-function
You can use double quotes if you need to interpolate data before processing. For instance escape characters can be used to insert newlines, tabs and other ...
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65 Arbitrary string interpolation semantics
https://perl.plover.com/Interpolation/manual.html
Of course, it's a double-quoted string, so it's not evaluated. The only things that are evaluated in double-quoted strings are variable references.
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66 Expressions and Operators | Perl's Building Blocks - InformIT
https://www.informit.com/articles/article.aspx?p=28810&seqNum=3
Without the braces, Perl would think you wanted to interpolate a variable named $dateday in the double-quoted string, not to interpolate $date ...
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67 Scalar variables - Perl tutorial
https://algo.informatik.uni-freiburg.de/bibliothek/tutorials/perl-e/scalars.html
The most basic kind of variable in Perl is the scalar variable. ... The double quotes force interpolation of any codes, including interpreting variables.
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68 perl basics
https://www.cs.unc.edu/~jbs/resources/perl/perl-basics.html
... set $aVar3 = variable interpolated string, with $aVar1 replaced by 255 $aVar4 = 'only single quote interpolated characters are \' and \\' double quote ...
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69 perlop - perldoc.perl.org - Cs.csub.edu
https://cs.csubak.edu/docs/perl/perlop.html
They include variables, quote and quote-like operators, any expression in ... Note that this means that its contents will be interpolated twice, so.
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70 Perl printing examples | alvinalexander.com
https://alvinalexander.com/perl/perl-print-printing-in-perl-variables-quotes
One important thing to note in this example is the use of double quotes with that Perl print statement. In Perl, when you place a variable ...
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71 ITN_171 Chapter 9 Flashcards - Quizlet
https://quizlet.com/161273931/itn_171-chapter-9-flash-cards/
In Perl, double-quoted strings are not subject to interpolation. True False. False. A(n) ____ is a variable that represents a set of key/value pairs.
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72 Literals/String - Rosetta Code
https://rosettacode.org/wiki/Literals/String
verbatim strings (quotes where escape sequences are quoted literally); here-strings. Also, discuss which quotes expand variables.
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73 Interpolate a variable with single quotes - UNIX and Linux ...
https://www.unix.com/shell-programming-and-scripting/186109-interpolate-variable-single-quotes.html
What I am trying to do here is try to wrap up the value of a variable in single quotes. This value needs to be passed to another program which ...
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74 Backticks with single quote inside single quotes | Perl Misc
https://www.thecodingforums.com/threads/backticks-with-single-quote-inside-single-quotes.897491/
but there I'm free to swap in double quotes. In the actual scenario ... elaborate string literal and interpolating a variable in a certain
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75 Perl Pattern Matching
http://www.sarand.com/td/ref_perl_pattern.html
If the delimiter chosen is single quote, no variable interpolation is done on either the PATTERN or the REPLACEMENT. Otherwise, if the PATTERN contains a $ that ...
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76 Perl interpolation, Interpolation in Perl means, Extrapolation in Perl ...
https://zditect.com/blog/1751098.html
The most important distinction is between single and double quotes: double quotes interpolate the enclosed string, but single quotes do not.
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77 Perl Variable problem with e-mail address - SitePoint
https://www.sitepoint.com/community/t/perl-variable-problem-with-e-mail-address/2749
To avoid interpolation/expansion of variables, use single-quotes or escape special characters with a back-slash inside of a double-quoted ...
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78 Chapter 3 -- Variables - Rigacci.org
https://www.rigacci.org/docs/biblio/online/perl5_examples/ch3.htm
And finally, we took another look at double-quoted strings to see how variable interpolation works. You saw that Perl automatically replaces variables ...
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79 Rubyists: Just use double-quoted strings. : r/ruby - Reddit
https://www.reddit.com/r/ruby/comments/2t7gzp/rubyists_just_use_doublequoted_strings/
Using single-quoted strings still may have utility as indication to another programmer that interpolation is not intended...
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80 Working with Simple Values
http://plato.asu.edu/MAT420/beginning_perl/3145_Chap02.pdf
Perl on Windows, you may find it easier to say C:/WINNT/Profiles/ instead. This allows you to get the variable interpolation of double-quoted strings ...
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81 [perl #113958] [BUG] Variables do not interpolate properly in double ...
https://perl6-compiler.perl.narkive.com/7HZQZMDj/perl-113958-bug-variables-do-not-interpolate-properly-in-double-quoted-strings-in-regexes-in-rakudo
[perl #113958] [BUG] Variables do not interpolate properly in double-quoted strings in regexes in Rakudo. "Carl MÀsak" (via RT). 10 years ago.
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82 Perl Data Types and Variables
http://www.compsci.hunter.cuny.edu/~sweiss/course_materials/csci132/slides/Lesson_14.pdf
CSci 132 Practical UNIX with Perl. Variables in double-quoted strings. You can put a variable in a double-quoted string. When the.
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83 Linux perl data types help and examples - Computer Hope
https://www.computerhope.com/unix/perldata.htm
String literals are usually delimited by either single or double quotes. They work much like quotes in the standard Unix shells: double-quoted ...
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84 Perl 5 by Example: Variables
https://affy.blogspot.com/p5be/ch03.htm
And finally, we took another look at double quoted strings to see how variable interpolation works. You saw that Perl automatically replaces variables inside ...
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85 Scalars
http://fadr.msu.ru/manuals/perl-intro/node4.html
Perl's string quoting mechanisms are similar to those of the Bourne shell. Strings surrounded in double quotes ("...") are subject to variable substitution.
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86 To interpolate variable values inside a string, do not - PERL
https://www.careerride.com/question-5-PERL
use double quotes to enclose a string - use string concatenation - use scalar variables for interpolation. CORRECT ANSWER : use single quotes to enclose a ...
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87 Robert's Perl Tutorial - Rutgers Physics
http://www.physics.rutgers.edu/~kotliar/perltut.html
Double quotes allow the aforementioned variable interpolation. Single quotes do not. Both have their uses as you will see later, ...
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88 The Perl Language | Modern Perl, 4e
http://modernperlbooks.com/books/modern_perl_2016/03-perl-language.html
When you interpolate the value of a scalar variable or the values of an array within a double-quoted string, the current contents of the variable become ...
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89 perldata - Perl data types
https://theory.uwinnipeg.ca/CPAN/perl/pod/perldata.html
Arrays and slices are interpolated into double-quoted strings by joining the elements with the delimiter specified in the $" variable ( $LIST_SEPARATOR if ...
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90 Essential Perl - Stanford CS Education Library
http://cslibrary.stanford.edu/108/EssentialPerl.html
String interpolation works in regular expression patterns. The variable values are pasted into the expression once before it is evaluated. Characters like * and ...
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91 How To Avoid Putting Quotes Around Numbers With Perl Json ...
https://www.adoclib.com/blog/how-to-avoid-putting-quotes-around-numbers-with-perl-json-module.html
In Perl any string that is built with double quotes or something meaning double quotes will be interpolated. That is any variable or escaped char that.
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92 Double Quotes and Regular Expressions
https://www.ks.uiuc.edu/Research/vmd/vmd-1.5/ug/node84.html
Double quotes around a string are used to specify a regular expression search (compatible with Perl 5.005, using the Perl-compatible regular expressions ...
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93 The real difference between 'single quotes' and “double ...
https://javascript.plainenglish.io/the-real-difference-between-single-quotes-and-double-quotes-in-javascript-3d00bf720bcd
When using double quotes "" to create a string literal, the double quote character needs to be escaped using a backslash: \" . Photo by frank mckenna on ...
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94 How to concatenate variables in Perl - Newbedev
https://newbedev.com/how-to-concatenate-variables-in-perl
In Perl any string that is built with double quotes will be interpolated, so any variable will be replaced by its value. Like many other languages if you need ...
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95 Learning Perl - Page 30 - Google Books Result
https://books.google.com/books?id=lNVHi3TunxsC&pg=PA30&lpg=PA30&dq=perl+double+quote+interpolation&source=bl&ots=21V_W3a9ZW&sig=ACfU3U1aISygSMA926SgY3pqsPK6tGT45w&hl=en&sa=X&ved=2ahUKEwjj0LyegNT7AhX5k4kEHb78DykQ6AF6BQjiAhAD
Variable interpolation is also known as double-quote interpolation because it happens when double-quote marks (but not single quotes) are used.
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96 Pro Perl - Page 326 - Google Books Result
https://books.google.com/books?id=1bbjLxkBLaMC&pg=PA326&lpg=PA326&dq=perl+double+quote+interpolation&source=bl&ots=GjfWOtWQGF&sig=ACfU3U1fJ6H9NdndZK6ZCfrJ6sDAmloCyw&hl=en&sa=X&ved=2ahUKEwjj0LyegNT7AhX5k4kEHb78DykQ6AF6BQjQAhAD
Here is a trivial example of interpolating a subroutine that returns a reference to a ... The most obvious and common are double quotes and the double quote ...
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