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Hands-On Data Science with the Command Line

You're reading from  Hands-On Data Science with the Command Line

Product type Book
Published in Jan 2019
Publisher Packt
ISBN-13 9781789132984
Pages 124 pages
Edition 1st Edition
Languages
Authors (3):
Jason Morris Jason Morris
Profile icon Jason Morris
Chris McCubbin Chris McCubbin
Profile icon Chris McCubbin
Raymond Page Raymond Page
Profile icon Raymond Page
View More author details

Detached processing

Detached processing runs a command in the background. This means that terminal control is immediately returned to the shell process while the detached process runs in the background. With job control, these back grounded processes can be resumed in the foreground or killed directly.

How to background a process

Remember when we used the double ampersand to conditionally execute two commands that run one after another? By using a single ampersand, you can fork a process in the background and let it run. Let's use the command to save to a new file and run in the background:

cat all_reviews.csv | awk -F ","  '{print $4}' | grep -i Packt > background_words.txt &

This will take...

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