Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. It only takes a minute to sign up.
Sign up to join this community
I have a crontab that looks something like this:
0 8 * * * command >> mylog.log 2>&1
This appends both errors and standard output into mylog.log.
In addition to what's above, I want to be able to capture only the most recent outputs of command and send them to my email via:
mail -s 'test' [email protected]
In other words, write all outputs to a log, and send only new outputs to an email.
I read up on tee, and something tells me that may be an answer but I'm not 100% sure on that.
After checking with a colleague, the solution ended up being incredibly simple. Just divide out the script into multiple parts. Put these parts into a shell script.
#!/bin/sh
# write truncated log to temp.log
command > temp.log 2>&1
# mail contents of truncated log
mail -s 'test' [email protected] < temp.log
# append contents of truncated log to your primary log
cat temp.log >> mylog.log
Then take the bash script and run it in crontab
0 8 * * * bash mysh.sh