[ALUG] How to check a directory is empty (probably in bash)?
(Ted Harding)
ted.harding at nessie.mcc.ac.uk
Wed Feb 21 13:00:57 GMT 2007
On 21-Feb-07 Paul wrote:
> On Wednesday 21 February 2007 11:42, Eur Ing Chris Green wrote:
>> What's the simplest (and/or most concise) way to check for an empty
>> directory?
>
> if test -z `ls foo` ; then wibble ; fi
>
> Or
>
> if [ -z `ls foo` ] ; then wibble ; fi
>
> There's probably other ways....
>
> Regards, Paul.
NB: `ls foo` will not detect filenames in foo that begin with "."
Hence my suggestion using "ls -la"; but this then outputs the
"." for current, and ".." for parent directories, regardless
of whether "foo" is empty (and also a first line which gives
the "total"). Hence the test for "-eq 3".
Ted.
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Date: 21-Feb-07 Time: 13:00:54
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