David B. Teague wrote:
> > On my stand-alone machine at home, I get all files by making this change
> > to /etc/cron.daily/find:
> >
> > #cd / && updatedb --localuser=nobody 2>/dev/null
> > cd / && updatedb 2>/dev/null
> BTW Please explain why the && is present in the script! I have never
> understood what that is doing...
I'm no wiz shell programmer, but the && means "and", such that the
second command (updatedb) is _not_ executed if the first command fails.
Likewise, there is a "||" operator. See man sh, man bash, etc.
Consider this disaster I saw once:
A cron job executed this:
cd /tmp/tempstuff
rm -r *
Well, this got run a machine where the directory /tmp/tempstuff did not
exist. Well, the rm ran from "/" instead. It even cleaned out nfs
mounted directories...
A use of the "&&" is this:
cd /tmp/tempstuff && rm -r *
--
...RickM...
