Re: OT: need bash help [solved]



Backticks for a subshell are 'depricated' though the convention is still in
wide use. I use the $() method because `su - user 'command --opt="foo"'`
and such can get a bit confusing, and the alternative is much easier to
pick out of a mass of text.
On Oct 17, 2011 1:45 PM, "Mike Wright" <mike.wright@xxxxxxxxxxxxxx> wrote:

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?

Aaargh! Doesn't like the spaces around the = sign.

LINES=`ps x | grep mongod | wc -l` is a way to write it.

Sorry for the noise :/
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