Shell/Bash: bash how to remove all whitespace from a file Example

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Shell/Bash Example: This is the "bash how to remove all whitespace from a file" Example. compiled from many sources on the internet by SimpleTutorials.org

bash how to remove all whitespace from a file

# Example usage:
awk '{gsub(" ","",$0); print $0;}' input_file
# This replaces every space " " with nothing "", thereby eliminating all
# whitespace from the file

# Basic syntax:
awk '{gsub(regex, substitution_text, $field#); print $0;}' input_file
# Where:
#	- gsub is a function that replaces every regular expression (regex)
#		match with substitution_text. 
#	- $field# is optional but can be used to specify a particular field
#		where gsub should operate. (This is useful if you want to 
#		restrict the substitutions to a specific column) 

how to remove all space in file

cat file.txt | tr -d " \t\n\r" 



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