Your docker exec command says it needs “pseudo terminal and runs in interactive mode” (-it flags) while cron doesn’t attach to any TTYs. Try changing your docker exec command to this and see if that works? docker exec mongodb mongodump -d meteor -o /dump/
if (php_sapi_name() == ‘cli’) { if (isset($_SERVER[‘TERM’])) { echo “The script was run from a manual invocation on a shell”; } else { echo “The script was run from the crontab entry”; } } else { echo “The script was run from a webserver, or something else”; }
Solution: */1 * * * * su -s /bin/sh nobody -c ‘cd ~dstrt/www && /usr/local/bin/git pull -q origin master’
In Vixie cron, which is possibly the most common, you can do this almost exactly like a shell script. VARIABLE=value PATH=/bin:/path/to/doathing 0 0 * * * doathing.sh $VARIABLE The man page says: An active line in a crontab will be either an environment setting or a cron command. An environment setting is of the form, … Read more
A few crickets heard in this question. Good ‘ol RTFC with some discrete event simulation papers and Wikipedia: http://en.wikipedia.org/wiki/Cron#Multi-user_capability The algorithm used by this cron is as follows: On start-up, look for a file named .crontab in the home directories of all account holders. For each crontab file found, determine the next time in the … Read more
You can also specify the exact values for each gr 0 2,10,12,14,16,18,20 * * * It stands for 2h00, 10h00, 12h00 and so on, till 20h00. From the above answer, we have: The comma, “,”, means “and”. If you are confused by the above line, remember that spaces are the field separators, not commas. And … Read more
You really want to use at. It is exactly made for this purpose. echo /usr/bin/the_command options | at now + 1 day However if you don’t have at, or your hosting company doesn’t provide access to it, you can have a cron job include code that makes sure it only runs once. Set up a … Read more
Example using the ‘disable’ parameter: from tqdm import tqdm import time for i in tqdm(range(10), disable=True): time.sleep(1)
The manpage of logrotate.conf contains an important advice for the hourly option: Log files are rotated every hour. Note that usually logrotate is configured to be run by cron daily. You have to change this configuration and run logrotate hourly to be able to really rotate logs hourly. As pointed out by yellow1pl the solution … Read more
As seen in Install crontab on CentOS, the crontab package in CentOS is vixie-cron. Hence, do install it with: yum install vixie-cron And then start it with: service crond start To make it persistent, so that it starts on boot, use: chkconfig crond on On CentOS 7 you need to use cronie: yum install cronie … Read more