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I want to track each crontab output to separated file. Normally, I use this as crontab entry:
1 * * * * root php /mix/dostuff.php > /tmp/dostuff.txt
Now, I want to make it to write instead of /tmp/dostuff.txt, to /tmp/dostuff-YYYY-MM-DD-HH-II-SS.txt
I could get the date part, using this:
TIMESTAMP=`date +%Y-%m-%H\ %k:%M:%S`
Now, how do I stick this TIMESTAMP into output file?
crontabs are run in a different environment than the default shell, so you can use a small shell script under your home directory with something like this in it (we'll name it script.sh):
#!/bin/bash
php /mix/dostuff.php > /tmp/dostuff-`date +%Y-%m-%H\ %k:%M:%S`.txt
exit
then change this scripts permissions to ensure it is executable, 755 should be fine. Then in your crontab:
1 * * * * root /home/yourusername/script.sh
%Y-%m-%H isn't the usual year-month-date combination - try %Y-%m-%d !
1 * * * * root php /mix/dostuff.php > "/tmp/dostuff-`date +\%Y-\%m-\%H\ \%k:\%M:\%S`.txt"
Simple as that.
On CentOS 6.6, I use
*/10 * * * * /usr/bin/php -q /var/www/script.php > cron-job-log-$(date +\%Y\%m\%d\%H\%M\%S).txt
it will create a file every 10 min
cron-job-log-20150401124001.txt
Try it like following one. It will work perfectly.
1 * * * * root /home/yourusername/script.sh > /var/log/foldername/output_filename_$(date +\%Y-\%m-\H%).log
By before create backup folder into the log path.
