cannot `cd $_` to $_ containing spaces

cannot `cd $_` to $_ containing spaces

[Soren Roth]

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I made a directory with a space in the name, and tried to cd into it using
$_, and failed. Just trying to be a good citizen, I wouldn't be surprised
if this is known or somehow a feature.


~ % mkdir ArcGIS\ SDKs

~ % cd $_

cd: string not in pwd: ArcGIS



~ % echo $SHELL

/bin/zsh


~ % uname -a

Darwin XXXXX 19.6.0 Darwin Kernel Version 19.6.0: Thu Jun 18 20:49:00 PDT
2020; root:xnu-6153.141.1~1/RELEASE_X86_64 x86_64


~ % zsh --version

zsh 5.7.1 (x86_64-apple-darwin19.0)

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Re: cannot `cd $_` to $_ containing spaces

[Matthew Martin]

On Tue, Oct 13, 2020 at 12:30:57PM -0700, Soren Roth wrote:
> I made a directory with a space in the name, and tried to cd into it using
> $_, and failed. Just trying to be a good citizen, I wouldn't be surprised
> if this is known or somehow a feature.
> 
> 
> ~ % mkdir ArcGIS\ SDKs
> 
> ~ % cd $_
> 
> cd: string not in pwd: ArcGIS

This appears to be an issue with some part of your setup. It works in
zsh -f.

% PROMPT='%% ' zsh -f
% mkdir foo\ bar
% cd $_
% pwd
/home/phy1729/foo bar

Re: cannot `cd $_` to $_ containing spaces

[Roman Perepelitsa]

On Tue, Oct 13, 2020 at 9:31 PM Soren Roth <sorenoid@gmail.com> wrote:
> I made a directory with a space in the name, and tried to cd into it using $_, and failed.

You probably have the SH_WORD_SPLIT option enabled. This option causes
field splitting to be performed on unquoted parameter expansions, like
in POSIX sh. You can turn it off by adding `unsetopt SH_WORD_SPLIT` to
~/.zshrc. Otherwise you need to quote parameter expansions to prevent
field splitting (again, like in POSIX sh).

    cd "$_"

Roman.

Re: cannot `cd $_` to $_ containing spaces

[Daniel Shahaf]

Roman Perepelitsa wrote on Wed, 14 Oct 2020 09:25 +0200:
> On Tue, Oct 13, 2020 at 9:31 PM Soren Roth <sorenoid@gmail.com> wrote:
> > I made a directory with a space in the name, and tried to cd into it using $_, and failed.  
> 
> You probably have the SH_WORD_SPLIT option enabled. This option causes
> field splitting to be performed on unquoted parameter expansions, like
> in POSIX sh. You can turn it off by adding `unsetopt SH_WORD_SPLIT` to
> ~/.zshrc. Otherwise you need to quote parameter expansions to prevent
> field splitting (again, like in POSIX sh).
> 
>     cd "$_"

The SH_WORD_SPLIT option defaults to being disabled, so if you have it
enabled, you might wish to check why that's the case in the first
place, rather than simply to append an «unsetopt» to your configuration.