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1. |
Record Nr. |
UNINA9910704474003321 |
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Autore |
Guberman S (Steven) |
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Titolo |
Introduction to dissociative recombination / / Steven L. Guberman and J. Brian A. Mitchell |
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Pubbl/distr/stampa |
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[Washington, D.C.] : , : National Aeronautics and Space Administration, , [1989] |
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Descrizione fisica |
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1 online resource (13 unnumbered pages) |
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Collana |
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Soggetti |
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Dissociation |
Electron-ion recombination |
Quantum theory |
Rydberg series |
Ion recombination |
Rydberg states |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from title screen (viewed Mar. 1, 2013). |
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Nota di bibliografia |
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Includes bibliographical references (page 13). |
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2. |
Record Nr. |
UNINA9911007281703321 |
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Autore |
Campesato Oswald |
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Titolo |
Working With Grep, Sed, and Awk Pocket Primer |
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Pubbl/distr/stampa |
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Mercury Learning and Information, 2023 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (265 p.) |
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Collana |
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Disciplina |
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Soggetti |
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COMPUTERS / Programming Languages / Java |
COMPUTERS / Data Processing |
COMPUTERS / Databases / Data Mining |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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The goal of this book is to introduce readers to three powerful command line utilities that can be combined to create simple yet powerful shell scripts for performing a multitude of tasks. The code samples and scripts use the bash shell, and typically involve very small text files so that you can focus on understanding the features of grep, sed, and awk. In the simplest terms, grep (global regular expression print) will search input files in data for certain words or word patterns and print the lines that match it. sed is useful for changing or modifying data. Awk is a programming language also used for searching a data file for certain patterns, but can also perform certain tasks on the pattern matches it finds. Aimed at a reader relatively new to working in a bash environment, the book is comprehensive enough to be a good reference and teach a few new tricks to those who already have some experience with these command line utilities. |
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