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Re: return values of bash scripts
From: |
kc123 |
Subject: |
Re: return values of bash scripts |
Date: |
Wed, 21 Dec 2011 08:11:05 -0800 (PST) |
Thanks Bob. Awesome! The matching string example below did the trick.
Bob Proulx wrote:
>
> Mike Frysinger wrote:
>> kc123 wrote:
>> > For example, my script below called crond.sh:
>> > ...
>> > content=`ps auxw | grep [c]rond| awk '{print $11}'`
>> > ...
>> > and output is:
>> > CONTENT: /bin/bash /bin/bash crond
>> >
>> > Why are there 2 extra arguments printed (/bin/bash) ?
>>
>> because you grepped your own script named "crond.sh"
>>
>> make the awk script smarter, or use pgrep
>
> You are using a system that supports various ps options. The
> equivalent of the BSD 'ps aux' is the SysV 'ps -ef'. They are
> similar. But then instead of using 'ps aux' BSD style try not
> printing the full path by using 'ps -e'. You are matching your own
> grep becuase it is in the argument list.
>
> Then this can be made smarter by simply matching it as a string
> instead of as a pattern.
>
> ps -e | awk '$NF=="crond"'
>
> ps -e | awk '$NF=="crond"{print$1}'
>
> Bob
>
>
>
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