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fedora-users: Re: OT: need bash help

Re: OT: need bash help

From: Emmett Culley <emmett_at_nospam>
Date: Mon Oct 17 2011 - 19:46:35 GMT
To: users@lists.fedoraproject.org

On 10/17/2011 12:39 PM, Mike Wright wrote:
> Hi all,
>
> I'm trying to write a bash script and having problems.
>
> If I execute this:
>
> ps x | grep mongod | wc -l
>
> it returns a value.
>
> OTOH, if I execute this:
>
> LINES = ps x | grep mongod | wc -l
>
> it returns "command not found".
>
> How does one assign the output of a command to an environment variable?
>
> TIA,
> Mike Wright
You can use:

LINES=`ps x | grep mongod | wc -l`

(using back ticks to bracket the command)

Emmett
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