Changing the value of the variable from another shell script

Question

I have a shell script that has a on/off switch inside. I programmed the Housekeeping.sh to execute this certain line of code if the value is at 1 and don't execute it if it's at 0. The following is the code on my Housekeeping.sh:

ARCHIVE_SWITCH=1
if [[ $ARCHIVE_SWITCH -eq 1 ]]; then
    sqlplus ${BPS_SCHEMA}/${DB_PASSWORD}@${ORACLE_SID} @${BATCH_HOME}/sql/switch_archive.sql
fi

Now I want to create another shell script file that I'll execute to automatically change the variable ARCHIVE_SWITCHequals to 0 everytime I execute this script. Is there any other way that I can change the value of the variable ARCHIVE_SWITCH from another shell script file that I'll execute manually?

Answer 1

I'd use an option to the script:

bash housekeeping.sh      # default is off
bash housekeeping.sh -a   # archive switch is on

#!/usr/bin/env bash

archive_switch=0

while getopts :a opt; do
    case $opt
        a) archive_switch=1 ;;
        *) echo "unknown option -$opt" >&2 ;;
    esac
done
shift $((OPTIND-1))

if ((archive_switch)); then
    sqlplus ...
fi