Remove all whitespaces in a file- Linux

Question

How would I remove ALL whitespaces in a given file in Linux?

Solution 1

Depending on your definition of whitespace, something like:

tr -d ' \t\n\r\f' <inputFile >outputFile

would do the trick.

Solution 2

sed 's/\s//g' input.txt | tr -d '\n'

Solution 3

sed 's/\s//g'|tr -d '\n'

Solution 4

If you have UTF-8 data, best do this:

perl -CS -pe 's/\p{Space}//g' < input > output

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