OT: need bash help

[Emmett Culley]

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