Awk: Difference between revisions
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Igor Dzikajev |
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<span style="background:gray;padding:2px;border-radius:5px;color:white;">awk</span> |
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<h1>What is <span style="background:gray;padding:2px;border-radius:5px;color:white;">awk</span> command?</h1> |
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<span style="background:gray;padding:2px;border-radius:5px;color:white;">awk</span> is a scripting language, and it is helpful when working in the command line. It's also a widely used command for text processing. |
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When using <span style="background:gray;padding:2px;border-radius:5px;color:white;">awk</span>, you are able to select data – one or more pieces of individual text – based on a pattern you provide. |
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For example, some of the operations you can do with <span style="background:gray;padding:2px;border-radius:5px;color:white;">awk</span> are searching for a specific word or pattern in a piece of text given, or even select a certain line or a certain column in a file you provide. |
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<h1>The Basic Syntax of the <span style="background:gray;padding:2px;border-radius:5px;color:white;">awk</span> command</h1> |
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In its simplest form, the <span style="background:gray;padding:2px;border-radius:5px;color:white;">awk</span> command is followed by a set of single quotation marks and a set of curly braces, with the name of the file you want to search through mentioned last. |
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It looks something like this: |
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<p style="background:rgba(50,50,50,0.1);padding:10px;">awk '{action}' your_file_name.txt</p> |
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When you want to search for text that has a specific pattern or you're looking for a specific word in the text, the command would look something like this: |
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<p style="background:rgba(50,50,50,0.1);padding:10px;">awk '/regex pattern/{action}' your_file_name.txt</p> |
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With test file looking like this: |
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<p style="background:rgba(50,50,50,0.1);padding:10px;white-space:pre;">fristName lastName age city ID |
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Thomas Shelby 30 Rio 400 |
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Omega Night 45 Ontario 600 |
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Wood Tinker 54 Lisbon N/A |
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Giorgos Georgiou 35 London 300 |
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Timmy Turner 32 Berlin N/A</p> |
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Revision as of 17:38, 13 December 2022
awk
What is awk command?
awk is a scripting language, and it is helpful when working in the command line. It's also a widely used command for text processing. When using awk, you are able to select data – one or more pieces of individual text – based on a pattern you provide.
For example, some of the operations you can do with awk are searching for a specific word or pattern in a piece of text given, or even select a certain line or a certain column in a file you provide.
The Basic Syntax of the awk command
In its simplest form, the awk command is followed by a set of single quotation marks and a set of curly braces, with the name of the file you want to search through mentioned last.
It looks something like this:
awk '{action}' your_file_name.txt
When you want to search for text that has a specific pattern or you're looking for a specific word in the text, the command would look something like this:
awk '/regex pattern/{action}' your_file_name.txt
With test file looking like this:
fristName lastName age city ID Thomas Shelby 30 Rio 400 Omega Night 45 Ontario 600 Wood Tinker 54 Lisbon N/A Giorgos Georgiou 35 London 300 Timmy Turner 32 Berlin N/A