Comment on Prevent rsync cronjob to run multiple times via cronjob on Linux by hip0d.
Another way I just red on a blog is as follows:
$ crontab -l
* * * * * /path/to/cron.sh
The command above will, just as the first example, execute our PHP script every minute through a bash script. To prevent it from overlapping, it can also be changed to this.
$ crontab -l
* * * * * /usr/bin/pgrep -f /path/to/cron.sh > /dev/null 2> /dev/null || /path/to/cron.sh
The pgrep command will return false if it does not find a running process matching the first argument, /path/to/cron.sh. If it returns false, it'll process the second part of the OR comparison (the double vertical line, ||). If the running process was found, pgrep will return the Process ID (PID) and Bash will not continue to the second part of the OR statement since the first already returned true.
The trick here is to use very unique scriptnames. If the name is too generic (such as "cron.sh"), pgrep may return Process IDs from other running cron jobs and not execute the cron you wanted.
hip0d Also Commented
Prevent rsync cronjob to run multiple times via cronjob on Linux
Here is another life time example with flock:
*/5 * * * * /usr/bin/rsync –delete -a source_server:/source/path/ /dst/path/
Example using flock:
*/5 * * * * flock -xn /tmp/example.lock -c '/usr/bin/rsync –delete -a source_server:/source/path/ /dst/path/'
Recent Comments by hip0d
What is rather fun is during the anti-protest organized by Metropolitan Nikolay (with people only from the Plovdiv eparchy just like in the good old times of communism was financed by the unwilling people to go to the event). It was lied that the reason for Nikolay people to protest is because this is a protest in front of the Synod against the accepting of gay marriages (what a lie !!!). Besides that there is a many people from village called Krepost (if not mistaken the village) who were (protestants!) and came to protest in favour of the new anti people legislation (even though not orthodox christians), because they were mislead the protests are against the gays!
Metropolitan Nikolay has publicly asked priests in his eparchy to sign a document they're going to be present on the protests that should support the New Synodal "order". Those who were unwilling to cooperate of course can always be sent by their Metropolitan to a very distant village or even taken away their profession as priests so there was a lot of pressure put on those people.
От архива: Христовата любов побеждава дори смъртта, твърдеше приживе патриарх Неофит
Българският Патриарх Неофит в Москва на 8 Март 2016 г. ЧАСТ 2
Christ is Risen Eastern Orthodox Resurrection Paschal Greeting in Different Languages
Hi Stan,
I guess you cannot read the writtings on the icon as it is in cyrillic.
This is not Saint Mary and Saint Peter but Adam and Eve written in cyrillic on top of the icon.
Actually in orthodoxy it is a requirement for the depicted personalities, especially saints to have
written on the names of the saint and have the Halo. If you look closely at the picture you will notice
the two Adam and Eve are missing a Halo. The only person with a Halo in the icon is Saint John the Baptist.
Best Regards
Georgi
Install and configure rkhunter for improved security on a PCI DSS Linux / BSD servers with no access to Internet
–rwo, –report-warnings-only
This option causes only warning messages to be displayed. This can be useful when rkhunter is run via cron. Other options may
be used to force other items of information to be displayed.
–sk, –skip-keypress
When the –check command option is used, after certain sections of tests, the user will be prompted to press the return key
in order to continue. This option disables that feature, and rkhunter will run until all the tests have completed.
