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110 lines
3.4 KiB
110 lines
3.4 KiB
4 years ago
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#! /bin/bash
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###############################################################################
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#
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# DMRIDUpdate.sh
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#
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# Copyright (C) 2016 by Tony Corbett G0WFV
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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###############################################################################
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#
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# On a Linux based system, such as a Raspberry Pi, this script will perform all
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# the steps required to maintain the DMRIds.dat (or similar) file for you.
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#
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# It is designed to run from crontab and will download the latest IDs from the
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# master DMR-MARC ID database and optionally keep a backup of previously
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# created files for you.
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#
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# It will also prune the number of backup files according to a value specified
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# by you in the configuration below.
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#
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# When done, it will restart MMDVMHost to make the ID changes take effect.
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#
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# To install in root's crontab use the command ...
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#
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# sudo crontab -e
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#
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# ... and add the following line to the bottom of the file ...
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#
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# 0 0 * * * /path/to/script/DMRIDUpdate.sh 1>/dev/null 2>&1
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#
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# ... where /path/to/script/ should be replaced by the path to this script.
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#
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###############################################################################
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#
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# CONFIGURATION
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#
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# Full path to DMR ID file, without final slash
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DMRIDPATH=/etc/MMDVM
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DMRIDFILE=${DMRIDPATH}/DMRIds.dat
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# DMR IDs now served by RadioID.net
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DATABASEURL='https://ham-digital.org/status/users.csv'
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#
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# How many DMR ID files do you want backed up (0 = do not keep backups)
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DMRFILEBACKUP=1
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#
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# Command line to restart MMDVMHost
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RESTARTCOMMAND="systemctl status MMDVMHost.service"
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# RESTARTCOMMAND="killall MMDVMHost ; /path/to/MMDVMHost/executable/MMDVMHost /path/to/MMDVM/ini/file/MMDVM.ini"
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###############################################################################
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#
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# Do not edit below here
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#
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###############################################################################
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# Check we are root
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if [ "$(id -u)" != "0" ]
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then
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echo "This script must be run as root" 1>&2
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exit 1
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fi
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# Create backup of old file
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if [ ${DMRFILEBACKUP} -ne 0 ]
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then
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cp ${DMRIDFILE} ${DMRIDFILE}.$(date +%d%m%y)
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fi
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# Prune backups
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BACKUPCOUNT=$(ls ${DMRIDFILE}.* | wc -l)
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BACKUPSTODELETE=$(expr ${BACKUPCOUNT} - ${DMRFILEBACKUP})
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if [ ${BACKUPCOUNT} -gt ${DMRFILEBACKUP} ]
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then
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for f in $(ls -tr ${DMRIDFILE}.* | head -${BACKUPSTODELETE})
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do
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rm $f
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done
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fi
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# Generate new file
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curl ${DATABASEURL} 2>/dev/null | sed -e 's/\t//g' | awk -F"," '/,/{gsub(/ /, "", $2); printf "%s\t%s\t%s\n", $1, $2, $3}' | sed -e 's/\(.\) .*/\1/g' > ${DMRIDPATH}/DMRIds.tmp
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NUMOFLINES=$(wc -l ${DMRIDPATH}/DMRIds.tmp | awk '{print $1}')
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if [ $NUMOFLINES -gt 1 ]
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then
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mv ${DMRIDPATH}/DMRIds.tmp ${DMRIDFILE}
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else
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echo " ERROR during file update "
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rm ${DMRIDPATH}/DMRIds.tmp
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fi
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# Restart MMDVMHost
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eval ${RESTARTCOMMAND}
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