Simple daemon process in Ubuntu

Question

I want to start a simple daemon process in Ubuntu, which will write the current time to log file every 5 seconds.

 start-stop-daemon --start --user root --make-pidfile --pidfile /home/manjesh/test.pid --exec /home/manjesh/simplescript.sh

simplescript.sh

   #!/bin/bash

   echo $(date)" SNMP Monitoring and Log aggregator service " >> /home/manjesh/log.txt


    while true
      do
      echo $(date) >> /home/dcae/snmp-service/log
      sleep 5
    done

When I execute the command it says "No such file or directory even if the file do exist"

Any help will be appreciated. Thanks.

Do all the scripts and directories you are using exist and have the proper permissions? — AlG, Nov 22 '16 at 20:42
Which file does it say doesn't exist? Also, is `even if the file do exist` actually in the error message, or did you put the quotes wrong? — Barmar, Nov 22 '16 at 21:36
The problem was I had created a file in Windows and moved to Ubuntu, and there was a formatting problem, http://stackoverflow.com/questions/14219092/bash-my-script-bin-bashm-bad-interpreter-no-such-file-or-directory — Dave, Nov 23 '16 at 15:47

score 1 · Answer 1 · answered Nov 22 '16 at 20:49

The way I would do this is to use a cron job that triggers every minute and calls a script that writes the time every 5 seconds, like this:

Cron:

* * * * * /usr/local/bin/script >/dev/null 2>&1

Script:

#!/bin/bash
mkdir -p /home/dcae/snmp-service/
i="0"
while [ $i -lt 12 ]
do
echo $(date) >> /home/dcae/snmp-service/log
i=$[$i+1]
sleep 5
done

score 0 · Answer 2 · edited May 23 '17 at 12:07

0

The problem was I had created a file in Windows and moved to Ubuntu, and there was a formatting problem

-bash: ./my_script: /bin/bash^M: bad interpreter: No such file or directory

edited May 23 '17 at 12:07

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answered Nov 23 '16 at 15:49

Dave

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Simple daemon process in Ubuntu

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