Bash script max value per hour


 
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Top Forums Shell Programming and Scripting Bash script max value per hour
# 8  
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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uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME
uudemon.admin, uudemon.cleanu, uudemon.hour, uudemon.poll - Administrative shell scripts for polling remote systems, cleaning up spool directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons SYNOPSIS
These shell scripts reside in the following directory: /usr/lib/uucp DESCRIPTION
All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the scripts, remove the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file. This script reports status to the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID (uucpa) or root. This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com- mand is run with the following parameters: -C7, -D7, X2, -o2, -W1. This script runs the uusched and uuxqt daemons in the background. This script polls the systems listed in the /usr/lib/uucp/Poll file. The uudemon.poll script should be scheduled before the uudemon.hour script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script. FILES
Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files. Contains the uucp file. RELATED INFORMATION
Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1) Files: /usr/lib/uucp delim off uudemon(4)