copy backup PoSh

$dir=(date -uformat %d.%m.%Y)
mkdir D:\backup\$dir
copy I:\*\*.* -destination D:\backup\$dir

Oracle

ORACLE_HOME=/usr/lib/oracle/xe/app/oracle/product/10.2.0/server
PATH=$PATH:$ORACLE_HOME/bin
export ORACLE_HOME
export ORACLE_SID=XE
export PATH
sqlplus sys as sysdba