I need to create a directory if one does not exist.

if [ -d test]; then mkdir test; fi

does the opposite, how do it ?

I have tried :-

if [! -d test]; then mkdir test; fi

but that does not work.

Aaron

In alt.os.linux, Aaron Gray wrote:

> I need to create a directory if one does not exist.
>
> if [ -d test]; then mkdir test; fi
>
> does the opposite, how do it ?
>
> I have tried :-
>
> if [! -d test]; then mkdir test; fi
>
> but that does not work.

It would, with proper formatting

Try
if [ ! -d test ] ; then mkdir test ; fi
or
[ ! -d test ] && mkdir test
or
[ -d test ] || mkdir test



--
Lew Pitcher

Master Codewright & JOAT-in-training | Registered Linux User #112576
http://pitcher.digitalfreehold.ca/ | GPG public key available by request
---------- Slackware - Because I know what I'm doing. ------

"Lew Pitcher" <lpitcher@teksavvy.com> wrote in message
news:70069$486922c5$cef8b59e$24609@TEKSAVVY.COM-Free...
> In alt.os.linux, Aaron Gray wrote:
>
>> I need to create a directory if one does not exist.
>>
>> if [ -d test]; then mkdir test; fi
>>
>> does the opposite, how do it ?
>>
>> I have tried :-
>>
>> if [! -d test]; then mkdir test; fi
>>
>> but that does not work.
>
> It would, with proper formatting
>
> Try
> if [ ! -d test ] ; then mkdir test ; fi
> or
> [ ! -d test ] && mkdir test
> or
> [ -d test ] || mkdir test

Great, thanks Lew.

Aaron

I have seen many a Makefile that just uses the -p flag. For example:

mkdir -p test

This will succeed even if the directory already exists.

Cheers,

Ben

"Ben Collver" <BenCollver******.com> wrote in message
news:f1f7ff6d-0833-4275-996d-54be4fa61e29@r37g2000prm.googlegroups.com...
>I have seen many a Makefile that just uses the -p flag. For example:
>
> mkdir -p test
>
> This will succeed even if the directory already exists.

Right, thanks,

Aaron