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Re: [Help-bash] Using single quotes to escape a newline

From: Stephane Chazelas
Subject: Re: [Help-bash] Using single quotes to escape a newline
Date: Wed, 1 Jul 2015 15:31:54 +0100
User-agent: Mutt/1.5.21 (2010-09-15)

2015-07-01 07:21:46 -0700, Michael Convey:
> According to: Newham, Cameron (2005-03-29). Learning the bash Shell: Unix
> Shell Programming (In a Nutshell (O'Reilly)) (Kindle Locations 863-864).
> O'Reilly Media. Kindle Edition.
> "Whether you use a backslash or a single quote, you are telling the shell
> to ignore the special meaning of the RETURN character."
> However, when I try to use single quotes to escape a newline, the newline
> is not escaped, as follows:
> $ echo 'the fox
> > ran down the hill'
> the fox
> ran down the hill
> $
> Has the ability of single quotes to escape a newline changed since this
> book was written?

Where that book is incorrect is about the backslash case.


echo 'x

The *special meaning of* newline is removed in that the newline
is passed to echo as any other non-special character while in

echo x

The newline would be considered as a command delimiter (["echo",
"x"] command followed by ["y"] command).


echo x\

however, the newline (and backslash) is removed altogether. It's
the same as

echo xy


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