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Top Forums Shell Programming and Scripting How to replace a whitespace with line break? Post 302894038 by fozilla on Sunday 23rd of March 2014 09:20:21 AM
Old 03-23-2014
Linux How to replace a whitespace with line break?

Hello, I am a beginner in Unix and I'm learning how to program by myself.

I am trying to create a shell script that is able to take in either a file containing input or by standard input, and replacing every whitespace with a new line break.

so basically the input would be

This <SP> is <SP> a <SP> line. # where <SP> is a space

and the output would return

This
is
a
line.

so far i have understood the concept of using
Code:
while read line

, and as such has came up with the following code so far

Code:
#!/bin/bash

while read line; do
echo "$line"
done

but this only outputs correctly when there is a real line break instead of a whitespace in the file/stdin.

How should I modify the code to break every whitespace as a new line? Regards.
 

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GIT-STRIPSPACE(1)                                                   Git Manual                                                   GIT-STRIPSPACE(1)

NAME
git-stripspace - Remove unnecessary whitespace SYNOPSIS
git stripspace [-s | --strip-comments] git stripspace [-c | --comment-lines] DESCRIPTION
Read text, such as commit messages, notes, tags and branch descriptions, from the standard input and clean it in the manner used by Git. With no arguments, this will: o remove trailing whitespace from all lines o collapse multiple consecutive empty lines into one empty line o remove empty lines from the beginning and end of the input o add a missing to the last line if necessary. In the case where the input consists entirely of whitespace characters, no output will be produced. NOTE: This is intended for cleaning metadata, prefer the --whitespace=fix mode of git-apply(1) for correcting whitespace of patches or files in the repository. OPTIONS
-s, --strip-comments Skip and remove all lines starting with comment character (default #). -c, --comment-lines Prepend comment character and blank to each line. Lines will automatically be terminated with a newline. On empty lines, only the comment character will be prepended. EXAMPLES
Given the following noisy input with $ indicating the end of a line: |A brief introduction $ | $ |$ |A new paragraph$ |# with a commented-out line $ |explaining lots of stuff.$ |$ |# An old paragraph, also commented-out. $ | $ |The end.$ | $ Use git stripspace with no arguments to obtain: |A brief introduction$ |$ |A new paragraph$ |# with a commented-out line$ |explaining lots of stuff.$ |$ |# An old paragraph, also commented-out.$ |$ |The end.$ Use git stripspace --strip-comments to obtain: |A brief introduction$ |$ |A new paragraph$ |explaining lots of stuff.$ |$ |The end.$ GIT
Part of the git(1) suite Git 2.17.1 10/05/2018 GIT-STRIPSPACE(1)
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