<div>
print grep /abc|def|ghi|jkl/ &lt;&gt;;
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<div>
print grep /abc|def|ghi|jkl/,&lt;&gt;;
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ozo,<br />
<br />
Is this an answer to both questions, or just #1? &nbsp;If just #1, are there any other commands (eg: &quot;=~&quot;) which allow for multiple pattern matching, if so, please give examples.<br />
<br />
What does the &quot;&lt;&gt;&quot;&nbsp;mean exactly?
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ozo,

Is this an answer to both questions, or just #1?  If just #1, are there any other commands (eg: "=~") which allow for multiple pattern matching, if so, please give examples.

What does the "<>" mean exactly?

<div>
ozo,<br />
<br />
Thanks for that.<br />
So, are you saying that &quot;&lt;&gt;&quot;&nbsp;is the same as &quot;readline&quot;?
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ozo,

Thanks for that.
So, are you saying that "<>" is the same as "readline"?

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<div class="content wysiwyg-content">
UNIX has a &quot;-E&quot; switch to allow its grep utility to match multiple patterns at once, eg:<br />
&nbsp; grep -E &quot;abc|def|ghi|jkl&quot; infile<br />
will match all lines in infile which contain &quot;abc&quot; or &quot;def&quot;, etc.<br />
<br />
I know Perl has a &quot;grep&quot; command, and I know it can also do pattern matching with the &quot;=~&quot; operator, but how can I write CONCISE Perl code to match multiple patterns with the:<br />
1. grep command?<br />
2. &quot;=~&quot; operator?<br />
<br />
Thanks.
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UNIX has a "-E" switch to allow its grep utility to match multiple patterns at once, eg:
  grep -E "abc|def|ghi|jkl" infile
will match all lines in infile which contain "abc" or "def", etc.

I know Perl has a "grep" command, and I know it can also do pattern matching with the "=~" operator, but how can I write CONCISE Perl code to match multiple patterns with the:
1. grep command?
2. "=~" operator?

Thanks.

Multi pattern match

Perl is a high-level, general-purpose, interpreted, dynamic programming languages with over 25 years of development. Perl 5 runs on over 100 platforms from portables to mainframes and is suitable for both rapid prototyping and large-scale development projects.  Perl gained widespread popularity as a Common Gateway Interface (CGI) scripting language, in part due to its regular expression and string parsing abilities. In addition to CGI, Perl is used for graphics programming, system administration, network programming, finance, bioinformatics, and other applications.