dirty push
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#!/bin/bash
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#set u+x
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#~ versionno(){
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#~ e=$1
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#~ s=0
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#~ l=0
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#~ for i in $(echo ${e}|tr . " "); do
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#~ s=$(( ${i} * 100 ** ( 3 - ${l} ) + ${s} ))
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#~ l=$(( ${l} + 1 ))
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#~ done
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#~ echo ${s}
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#~ }
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url="https://download.mozilla.org/?product=firefox-latest&os=linux64&lang=en-US"
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dwldir=~/Downloads/
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cd ${dwldir}
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ffbin=$(find /opt/ -type f|grep "/firefox$"|head -1)
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# test with HEAD (-I) request for url redirect, taken from
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# https://stackoverflow.com/questions/3074288/get-url-after-redirect
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which curl >/dev/null && url_effective=$( curl -sLI -o /dev/null -w %{url_effective} ${url} ) || { echo "tool missing: curl" && exit 1; }
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echo "Downlaod would be: "${url_effective}
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next_version=$(echo $url_effective|rev|cut -d/ -f1|cut -d. -f3-|rev|cut -d- -f2)
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curr_version=$(firefox -v|cut -d" " -f3)
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opti_version=$(${ffbin} -v|cut -d" " -f3)
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dwlfn=FirefoxSetup${next_version}.tar.bz2
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if test $? -ne 0; then opti_version=0; fi
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echo "remote : "${next_version}
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echo "local : "${curr_version}
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echo "alt/opt: "${opti_version}
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#echo "Current Version: "${curr_version}
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#echo "Download Version: "${next_version}
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# prepare numbers
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#c=$( versionno ${curr_version} )
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#n=$( versionno ${next_version} )
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#o=$( versionno ${opti_version} )
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xfn="/usr/lib/firefox-esr/firefox-esr"
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if test ${curr_version} != ${opti_version} #-o ${c} -lt ${o} -a ${o} -ge ${n};
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then
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test -x ${xfn} && {
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echo "fixing link…"
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sudo mv ${xfn} ${xfn}.old
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sudo ln -s ${ffbin} ${xfn}
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} || echo "executable missing: "${xfn}
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# test $? -eq 0 && exit 0
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fi
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# stop if version is not newer
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if test ${next_version} = ${opti_version} #${n} -le ${c};
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then
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echo "No Update!"
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# test $? -eq 0 && exit 1
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else
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# get for new version
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sudo wget -c -O ${dwldir}${dwlfn} ${url_effective}
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err=$?
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echo -n "wget return code: "$err
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sudo rm -rf /opt/firefox/
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sudo mkdir -p /opt/firefox/
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err=$?
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echo -n "mkdir return code: "$err
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sudo tar xfvj ${dwldir}${dwlfn} -C /opt/
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# used
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# https://linuxconfig.org/how-to-install-latest-firefox-browser-on-debian-9-stretch-linux
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sudo mv /usr/lib/firefox-esr/firefox-esr /usr/lib/firefox-esr/firefox-esr.old
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sudo ln -s /opt/firefox/firefox /usr/lib/firefox-esr/firefox-esr
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fi
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