rsync - Mar 2014 - redirect rsync's log to a log file together with other program

Hi,

I'm writing a program to use rsync to do something, and I want to keep the
output of both in the same log file. My program is writing log to
/var/log/my.log via syslog() LOG_LOCAL0. I tried to use rsync's
'--log-file=/var/log/my.log' option; it seems to work to some extent,
but
have some problems:

1. If I issue the rsync command directly on command line, rsync's log will
be written to both the log file and the terminal (probably stdout).

2. IF I run my own program (which invokes rsync), rsync's log/output
won't
be written to the log file, but only to the terminal/stdout. I guess it's
because syslog() is also writing to this file.

How can I redirect both's log to this log file, and without sending
rsync's
log to the terminal/stdout? Thanks.

--tuma
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On Wed, Mar 26, 2014 at 6:00 AM, Tuma Wang <wangtuma at gmail.com>
wrote:
> Hi,
>
> I'm writing a program to use rsync to do something, and I want to keep
the
> output of both in the same log file. My program is writing log to
> /var/log/my.log via syslog() LOG_LOCAL0. I tried to use rsync's
> '--log-file=/var/log/my.log' option; it seems to work to some
extent, but
> have some problems:
Don?t use --log-file

Instead put this at the end of the rsync command:

          2>&1 >> /var/log/my.log

so instead of

          rsync {whatever} --log-file=?$LOG?

use

          rsync {whatever} 2>&1 >> "$LOG?

HTH

-- TjL