[Linux-disciples] write to file from shell script

[Dylan Thurston]

Steve, I think you're confusing 'exec' with 'eval'.  'eval' does what
you say; 'exec' stops execution of the current program and switches to
the new one.  I think it would be harmless here, and would save a
small amount of memory.

--Dylan

On Tue, Nov 15, 2011 at 10:18:12PM -0500, Stephen R Laniel wrote:
> Huh. Running 'exec' is basically never the right idea. That's what you run, if I'm not mistaken, when you construct a string using some long combination of things -- I don't know, grep, sed, whatever -- and then need the shell to interpret the string you've just constructed as a command. It wouldn't apply here.
> 
> I mean, all you're doing here is
> 
> 1. running a command
> 2. dumping the output of that command to a file
> 
> , right? No need for exec here. So what happens if you drop the exec?
> 
> Also, stick an
> 
> echo $logfile
> 
> between the 'logfile' line and the 'gondor' line.
> 
> On Nov 15, 2011, at 10:15 PM, Jamie Forrest wrote:
> 
> > I seem to have solved it as follows:
> > 
> > #!/bin/bash
> > 
> > logfile=/Users/jforrest/Projects/django-cnsltme/cnsltme/backup/`date
> > +%F`_dump.sql
> > exec gondor sqldump primary > $logfile
> > 
> > Is it correct?
> > 
> > 
> > On Tue, Nov 15, 2011 at 10:08 PM, Adam Rosi-Kessel <adam at rosi-kessel.org> wrote:
> >> On 11/15/2011 10:01 PM, Jamie Forrest wrote:
> >>> 
> >>> I'm running it from a subdirectory in my home dir. I tried changing it
> >>> to a full path and still no dice. And yes the output from gondor
> >>> sqldump goes to screen normally.
> >> 
> >> Add 2>&1 ?
> >> 
> > 
> > 
> > 
> > -- 
> > http://about.me/jamieforrest
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> 
> -- 
> Stephen R. Laniel
> steve at stevereads.com
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