Simple config(.conf or .ini) changer

config-changer.sh

#CONFIGS= #in format variable1:value1[,variable2:value2[,...]]
#CONFIG_FILE= #path to file


echo "
#------------------------------------------------------------------------------
# AUTOGENERATED
#------------------------------------------------------------------------------
" >> $CONFIG_FILE

echo ">>> Configuring $CONFIG_FILE"
IFS=',' read -ra CONFIG_PAIRS <<< "$CONFIGS"
for CONFIG_PAIR in "${CONFIG_PAIRS[@]}"
do
    IFS=':' read -ra CONFIG <<< "$CONFIG_PAIR"
    VAR="${CONFIG[0]}"
    VAL="${CONFIG[1]}"
    sed -e "s/\(^\ *$VAR\(.*\)$\)/#\1 # overrided in AUTOGENERATED section/g" $CONFIG_FILE > /tmp/config.tmp && mv -f /tmp/config.tmp $CONFIG_FILE
    echo ">>>>>> Adding config '$VAR' with value '$VAL' "
    echo "$VAR = $VAL" >> $CONFIG_FILE
done
echo ">>>>>> Result config file"
#cat $CONFIG_FILE