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Top Forums Shell Programming and Scripting Bash script max value per hour Post 303005348 by jgt on Tuesday 17th of October 2017 08:23:28 AM
Old 10-17-2017
If the file is sorted, and the data exceeds 24 hours, then the results will show only the maximum value for an hour on any day rather than the maximum for each hour on every day.

Code:
MAX=0
PREV_HR=25
while read time count
do
hour=${time:0:2}
if ( $PREV_HR -eq 25 )
then
      PREV_HR=$hour
fi
if ( $hour -ne $PREV_HR )
then
    echo $PREV_HR $MAX
    PREV_HR=$hour
    MAX=0
fi
if ( $count -gt $MAX )
then
    MAX=$count
fi
done
echo $PREV_HR $MAX

 

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HYLAFAX-SHUTDOWN(5)						File Formats Manual					       HYLAFAX-SHUTDOWN(5)

NAME
etc/shutdown - server shutdown control file DESCRIPTION
If the file etc/shutdown is present it describes when a HylaFAX server is to be shutdown and may contain a descriptive message to return to clients explaining the reason for the shutdown. This file is used by the hfaxd(8) program. The file has the following format: <year> <month> <day> <hour> <minute> <deny> <disconnect> <shutdown message text> The first line defines the date and time the server should be shutdown and the time preceding at which unprivileged clients should be denied service or disconnected; these fields are described in more detail below. Any lines that follow the first are taken as the text of a message to return to clients when notifying them of a scheduled shutdown or when denying them service. <year> The decimal year; e.g. 1996. <month> The decimal month; e.g. 10 for October. <day> The decimal day of the month in the range [1..31]. <hour> The decimal hour since midnight; in the range [0..23]. <minute> The decimal minute after the hour; in the range [0..59]. <deny> The time prior to the shutdown time at which to deny service to unprivileged clients. This value is specified as decimal number in the form HHMM; e.g. 130 for 1 hour and 30 minutes. <disconnect> Time time prior to the shutdown time at which to disconnect unprivileged clients that are logged in to the server. This value is specified as a decimal number in the form HHMM. NOTES
This file is typically created using the ``SHUT'' command supported by hfaxd(8). SEE ALSO
hfaxd(8), hylafax-server(5) January 18, 1996 HYLAFAX-SHUTDOWN(5)
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