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Date: Mon, 22 Oct 2012 14:57:16 -0700
Message-ID: 
 <CAE_FxDi6K8Uxx2=YZaeOyBjDEwu9TSwmfLm0U_NBEpKv2txLXg@mail.gmail.com>
Subject: Re: What is the command to see if a file is a directory or not in
 HDFS from bash?
From: Andy Isaacson <adi@cloudera.com>
To: user@hadoop.apache.org
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The result is reported in the shell exit code, not as a textual output
from the command, just like the UNIX /usr/bin/test command.

The intended use case is something like the following Bourne/bash shell exa=
mple:

if test -d /opt; then
   ... install in /opt
else
   ... install in /usr
fi

or using the /usr/bin/[ synonym available on most systems,

if [ -d /opt ]; then ...

Similarly,

if hadoop dfs -test -e something.txt; then
   echo "something.txt exists on hdfs"
else
   echo "something.txt does not exist on hdfs"
fi

-andy

On Mon, Oct 22, 2012 at 2:09 AM, Pedro S=E1 da Costa <psdc1978@gmail.com> w=
rote:
> I execute  'hadoop-1.0.3/bin/hadoop dfs -test -d
> /user/xeon/gutenberg/A.txt' command in the bash, and I was expecting
> getting the value 0 or 1, but I got nothing.
>
> What is the command to launch from the bash that allows to check if a
> file in HDFS is a file or directory?
>
> --
> Best regards,