These are the scripts that I use on Linux to keep my addons up to date for Elder Scrolls Online. These are for the steam version but could be easily adapted for the normal version as well.

ESO_HarvestMap_update.sh

#!/bin/bash -x
# (C) 2018 @mojo66, eso@mojo66.de

# enjoy the beauty of scripting on a professional operating system

# exit if ESO is running
#if [[ $(uname -s) -eq "Darwin" ]]; then option="-q"; fi
#pgrep -x $option eso
#if [[ ! $? -eq 1 ]]; then echo "Quit ESO before running this script to avoid data corruption.";exit 1;fi

# use absolute paths. this makes the script work regardless of the dir it resides in
basedir="/mnt/fast/SteamLibrary/steamapps/compatdata/306130/pfx/drive_c/users/steamuser/My Documents/Elder Scrolls Online/live"
addondir=${basedir}/AddOns/HarvestMap
emptyfile=${addondir}/Main/emptyTable.lua

# check if everything exists
if [[ ! -e "${addondir}" ]]; then echo "ERROR: ${addondir} does not exists, re-install this AddOn and try again...";exit 1;fi

savedvardir=${basedir}/SavedVariables
if [[ ! -e "${savedvardir}" ]]; then
# create saved vars dir if it doesn't exist
echo "${savedvardir} doesn't exist. Creating..."
mkdir "${savedvardir}"
if [[ $? -gt 0 ]]; then echo "ERROR: Failed to create ${savedvardir}."; exit 1;fi
fi

# iterate over the different zones

for zone in AD EP DC DLC NF; do

fn=HarvestMap${zone}.lua

echo "Working on ${fn}..."

svfn1=${savedvardir}/${fn}
svfn2=${svfn1}~

# if saved var file exists, create backup...
if [[ -e ${svfn1} ]]; then

cp -fp "${svfn1}" "${svfn2}"

# ...else, use empty table to create a placeholder
else
name=Harvest${i}_SavedVars
echo -n ${name} | cat - "${emptyfile}" > "${svfn2}"

fi

# up/download. Note that the equivalent of the next line requires 89 lines of code on Windows

curl -# -d @"${svfn2}" -o "${svfn1}" "http://harvestmap.binaryvector.net:8080"

rm "${svfn2}"
done

ESO_TamrielTradeCentre_PriceTable.sh

#!/bin/bash -x

basedir="/mnt/fast/SteamLibrary/steamapps/compatdata/306130/pfx/drive_c/users/steamuser/My Documents/Elder Scrolls Online/live"
addondir=${basedir}/AddOns/TamrielTradeCentre
outfile=$(mktemp)
outdir=$(mktemp -d)

curl -o "${outfile}" https://eu.tamrieltradecentre.com/download/PriceTable && \
(cd "${outdir}" && \
unzip "${outfile}" && \
mv -vf ${outdir}/*.lua "${addondir}/")
rm -f "$outfile"
rm -rf "$outdir"

ESO_upload_build.sh

curl -v -X POST \
--progress-bar \
-F 'MAX_FILE_SIZE=41000000' \
-F 'wikiUserName=Cyberkov' \
-F 'logfile=@/home/cyberkov/Nextcloud/Games/ESO/SavedVariables/uespLog.lua' \
https://esolog.uesp.net/submit.php

run.sh

#!/bin/bash
./ESO_upload_build.sh &
./ESO_HarvestMap_update.sh &
./ESO_TamrielTradeCentre_PriceTable.sh &
./minion.sh &
wait