Re: xargs verses exec
- From: "Rich Jesse" <rjoralist2@xxxxxxxxxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Tue, 24 Jul 2012 14:18:58 -0500 (CDT)
Joel writes:
> cd ${ORACLE_BASE}
> find */cdump -name "*.abc" -type f -mtime +40 -print | xargs ls -ltr
>
> Then, the find command comes back with the contents of the ${ORACLE_BASE}
> directory.
>
> If I replace "ls -ltr" with "rm", I can see that this could be dangerous.
> (Maybe removing something not intended).
A few things here. You're globbing parameters to the find command with the
"*/cdump" (which I couldn't even do on AIX 5.3). I think you'd be better
off using the -prune option, which may solve your issue. Google and some
man pages should come up with examples for you.
Also, most implementations of xargs have the "-i" option to take the output
from the find and substitute into your command with curly braces like:
blah|xargs -i ls -ltr {}
This shouldn't be strictly necessary in most cases (that I can think of),
but like your "-print" option, it offers control, maintenance
considerations, documentation, etc. And you can couple it with the "-t"
option for a "trace" of what the xargs command is actually doing, which is
helpful for log files in a cron'd script.
HTH! GL!
Rich
--
//www.freelists.org/webpage/oracle-l
Other related posts:
