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You're reading from  Learning AWK Programming

Product typeBook
Published inMar 2018
Reading LevelIntermediate
PublisherPackt
ISBN-139781788391030
Edition1st Edition
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Shiwang Kalkhanda
Shiwang Kalkhanda
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Shiwang Kalkhanda

Shiwang Kalkhanda (RHCA, RHCSS, MCSE) is a Linux geek and consultant with expertise in the automation of infrastructure deployment and management. He has more than 10 years' experience in security, system, and network administration, and training on open source tech. For most of his automation work, he uses Shell Scripting, Python, and Go. He holds a master's and a bachelor's degree in computer applications. He enjoys traveling and spending time with his children. He is also the author of a book on text processing utilities in Unix-like environments, Learning Awk Programming.
Read more about Shiwang Kalkhanda

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One-dimensional arrays

The AWK language provides one-dimensional arrays for storing strings and numbers. An array name could be any valid variable name. One variable name cannot be used as both an array and a variable at the same time in the same program.

Arrays in AWK are extremely powerful in comparison to traditional arrays that we use in other programming languages. Arrays in AWK are associative—that is, each array is a collection of a pair: an index and its corresponding array element value. In associative arrays, indexes are not essentially required to be in order, one can use either a string or a number as an array index. An array size can expand or shrink at runtime and is not statically defined.

Its syntax is as follows:

arr[index] = value

The different elements of the array syntax used here are explained in the following list:

  • arr: This is the name of the array...
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Learning AWK Programming
Published in: Mar 2018Publisher: PacktISBN-13: 9781788391030

Author (1)

author image
Shiwang Kalkhanda

Shiwang Kalkhanda (RHCA, RHCSS, MCSE) is a Linux geek and consultant with expertise in the automation of infrastructure deployment and management. He has more than 10 years' experience in security, system, and network administration, and training on open source tech. For most of his automation work, he uses Shell Scripting, Python, and Go. He holds a master's and a bachelor's degree in computer applications. He enjoys traveling and spending time with his children. He is also the author of a book on text processing utilities in Unix-like environments, Learning Awk Programming.
Read more about Shiwang Kalkhanda