Hi,
I would like to run a cron job which periodically checks if I have
upgradable packages. One way to do it is probably like this:
$ apt-get upgrade -s | grep -q "^0 upgraded"
In case exit code is >0, then there are upgradable packages. The
second solution I came up with is:
$ for package in $(dpkg-query -f '${binary:Package}\n' -W); do\
apt-show-versions -u "$package" &>/dev/null && break;\
done
Again, if exit code is >0, then there is at least one upgradable
package. Of course, a solution like "apt-show-versions | grep -q
"upgradeable"" would also work.
For me the "apt-get upgrade -s | grep -q "^0 upgraded"" seems to be
the most reasonable solution, but maybe there is even a better way?
thanks,
Martin
