Oracle instantclient installer

install-instantclient.sh

#!/usr/bin/env bash

ROOT=/opt/oracle
if [ ! -e $ROOT ]; then
    mkdir -p $ROOT
fi

LIBS=instanclient_basic_lib.zip
if [ ! -e $LIBS ]; then
    wget -O $LIBS https://github.com/bumpx/oracle-instantclient/raw/master/instantclient-basic-linux.x64-12.1.0.2.0.zip
fi

SDK=instanclient_basic_sdk.zip
if [ ! -e $SDK ]; then
    wget -O $SDK https://github.com/bumpx/oracle-instantclient/raw/master/instantclient-sdk-linux.x64-12.1.0.2.0.zip
fi

unzip -o $LIBS -d $ROOT
unzip -o $SDK -d $ROOT

CLIENT="$ROOT/instantclient"
if [ ! -e $CLIENT ]; then
    mv "$ROOT/instantclient_12_1" $CLIENT
fi

LN_libclntsh="libclntsh.so"
LN_libocci="libocci.so"

if [ ! -h "$CLIENT/$LN_libclntsh" ]; then
    ln -s "$CLIENT/libclntsh.so.12.1" "$CLIENT/$LN_libclntsh"
fi

if [ ! -h $CLIENT/$LN_libocci ]; then
    ln -s "$CLIENT/libocci.so.12.1" "$CLIENT/$LN_libocci"
fi

export ORACLE_HOME="$CLIENT"
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME

export OCI_HOME="$CLIENT"
export OCI_LIB_DIR="$CLIENT"
export OCI_INCLUDE_DIR="$CLIENT/sdk/include"