What is the difference between crontab -e and nano etc crontab? Doing a 'crontab -e' automatically invokes the users editor and performs a basic validity syntax check when you attempt to exit Any jobs scheduled using the user crontab are run under the users login id whereas the the system etc crontab has the capability to schedule jobs under any system userid listed in etc passwd
cron - How to make crontab email me with output? - Ask Ubuntu Additional note 2: If mail is sending from the command line but not through crontab, try changing FromLineOverride to NO in etc ssmtp ssmtp conf You can also get more detailed logging by adding Debug=YES to ssmtp conf - the extra logging goes to var log mail log (Thanks Jakub Kukul!)
cron - Why crontab scripts are not working? - Ask Ubuntu #! usr bin crontab # Reload this crontab # 54 12 * * * ${HOME} bin crontab The reload command above relies on an executable crontab with a bang path running crontab Some systems require the running crontab in the command and specifying the file If the directory is network-shared, then I often use crontab $(hostname) as the name of the file
How do I set up a Cron job? - Ask Ubuntu You can see the contents of the user crontab with crontab -l To add a cron job that runs as root, you can edit root's crontab by running sudo crontab -e The most flexible way is to use the system crontab etc crontab which you can edit only with root privileges In this file, the user each command is to be run as is specified, so you can run
cron - Verify if crontab works - Ask Ubuntu Old question and many complicated answers The easiest way is to add this line to your crontab * * * * * bin bash -l -c 'date > ~ cron-test txt' It will simply every minute write the current date to the file ~ cron-test txt Then you just run cat ~ cron-test txt and check if the shown date is the current date If it is crontab is working
cron - Crontab syntax; Multiple commands - Ask Ubuntu I would like to get the following chain of commands as a cronjob: * * * * * source activate myenv3 ; cd ~ foo bar amp; amp; python sssb py It works in console, but I dont get any output
cron - How to activate this crontab? - Ask Ubuntu Actually, the best way to use crontab is by using crontab itself: crontab -l # list current crontab entries crontab -e # edit the cron table As soon as you finish editing the crontab (via 'crontab -e'), it is activated, and will fire off whatever was set whenever it was set to fire off Note that the machine must be running for crontab to work
Setting up an Email alert on crontab for SOME tasks The crontab file is parsed from top to bottom, so any environment settings will affect only the cron commands below them in the file So you can simply set MAILTO="" (empty string) immediately before the task that you don't want alerts from, then back to MAILTO="<my_Email>" if you had later jobs that should send alerts
Where is the cron crontab log? - Ask Ubuntu It may be different depending on the system type and edition But in many cases, you have to figure out the time basis that the target crontab rule runs on So for example, if you're searching for the related log for a daily crontab rule, then you'll find the log divided into different files, one per day, in: $ ls -ltrh var log cron-*