I want to output two commands to a file. I want the exact time (date) AND temperature (sensors) to go to file every 5 minutes. I know how to output one command to a file, but two? How to write such script?
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If I understand your question right--you want to output two values to the same file--then this might be what you are looking for:
TIME="`date`" SENSOR="56" echo "$TIME $SENSOR" >> /path/to/a/file
From Clinton Blackmore -
Something like this? (In a loop, cron, or whatever you're currently using.)
(date; my_sensor_command) >> log_file
Insyte : +1 for figuring out what the question was...From retracile -
Group all commands in parenthesis, because that will execute them in a sub-shell which you easily can redirect the output from:
while sleep 5m do (date +%Y-%m-%d_%H:%M | tr -d '\012'; echo -n ' '; \ /etc/rc.d/init.d/lm_sensors status | grep '^CPU Temp') >> /your/log/file done
From hlovdal -
Maybe I am misunderstanding the question, but it looks like all the answers are appending to one file. I read your question to be that you want the same output in 2 files. If that was what you are looking for, tee is a way to accomplish that:
echo "Stuff to output"|tee -a file1 file2
From Alex -
Refering to hlovdal post, you can set a cron like this:
$ crontab -e
*/5 * * * * (echo
date +%Y%m%d%H%M%S
| tr -d '\012'; echo -n ' '; sensors | grep "CPU Temp:" | awk '{ print $3 }' )>> /var/log/sensors.loghlovdal : Using both grep and awk is very often not neccessary. "grep "CPU Temp:" | awk '{ print $3 }'" can be shortened to "awk '/CPU Temp:/{ print $3 }'"From mezgani
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