#!/usr/bin/bash
# ********************************
# * dba_oracle_awr.sh
# ********************************
# Usage: dba_oracle_awr.sh -s [instance_name]
#          -f [from time]
#          -t [to time]
#          -p [report type, html or text]
#          -h [oracle home]
#          -n [tns admin]
#
#         time format: 'yyyymmddhh24miss'.
#         E.g 20110304170000 means 05:00:00pm, Mar 04, 2011
# Edit: www.jbxue.com
#

# **********************
# get parameters
# **********************
  while getopts ":s:f:t:p:h:n" opt
  do
    case $opt in
    s) instance=$OPTARG
       ;;
    f) from=$OPTARG
       ;;
    t) to=$OPTARG
       ;;
    p) type=$OPTARG
       type=$(echo $type|tr "[:upper:]" "[:lower:]")
       ;;
    h) oracle_home=$OPTARG
       ;;
    n) tns_admin=$OPTARG
       ;;
    '?') echo "$0: invalid option -$OPTARG">&2
       exit 1
       ;;
    esac
done

if [ "$instance" = "" ]
then
  echo "instance name(-s) needed"
  echo "program exiting..."
  exit 1
fi

if [ "$from" = "" ]
then
  echo "from time (-f} needed"
  echo "program exiting..."
  exit 1
fi

if [ "$to" = "" ]
then
  echo "to time (-t) needed"
  echo "program exiting..."
  exit 1
fi

if [ "$oracle_home" ="" ]
then
  echo "oracle home (-h) needed"
  echo "program exiting..."
  exit 1
fi
sqlplus="${oracle_home}/bin/sqlplus"
echo $sqlplus

if [ "$type" = "" ]
then
  type="html"
fi

# ********************
# trim function
# ********************
function trim()
{
  local result
  result=`echo $1|sed 's/^ *//g' | sed 's/ *$//g'`
  echo $result
}

# *******************************
# read interchange ID & passwd
# *******************************
read_act()
{
echo "interchange ID: "
read user
echo "password: "
stty -echo
read pswd
stty echo
}

# *******************************
# get begin and end snapshot ID
# *******************************
define_dur()
{
begin_id=`$sqlplus -s /nolog<<EOF
  conn $user/$pswd@$instance
  set pages 0
  set head off
  set feed off
  select max(SNAP_ID) from DBA_HIST_SNAPSHOT where
    BEGIN_INTERVAL_TIME<=to_date($from,'yyyymmddhh24miss');
EOF`

ret_code=$?
if [ "$ret_code" != "0" ]
then
  echo "sqlplus failed with code $ret_code"
  echo "program exiting..."
  exit 10
fi

end_id=`$sqlplus -s /nolog<<EOF
  conn $user/$pswd@$instance
  set pages 0
  set head off
  set feed off
  select min(SNAP_ID) from DBA_HIST_SNAPSHOT where
    END_INTERVAL_TIME>=to_date($to,'yyyymmddhh24miss');
  spool off
EOF`

ret_code=$?
if [ "$ret_code" != "0" ]
then
  echo "sqlplus failed with code $ret_code"
  echo "program exiting..."
  exit 10
fi

begin_id=$(trim ${begin_id})
end_id=$(trim ${end_id})
# echo "begin_id: $begin_id  end_id: $end_id"
}

# *******************************
# generate AWR report
# *******************************
generate_awr()
{
  awrsql="${oracle_home}/rdbms/admin/awrrpt.sql"
  if [ ! -e $awrsql ]
  then
    echo "awrrpt.sql does not exist, exiting..."
    exit 20
  fi

  tmp1_id=${begin_id}
  #echo "begin_id is: $begin_id"
  #echo "tmp1_id is: $tmp1_id"
  while [ ${tmp1_id} -lt ${end_id} ]
  do
    let tmp2_id=${tmp1_id}+1
    if [ $type = "text" ]
    then
      report_name="awrrpt_${instance}_${tmp1_id}_${tmp2_id}.txt"
    else
      report_name="awrrpt_${instance}_${tmp1_id}_${tmp2_id}.html"
    fi
    #echo $report_name

$sqlplus -s $user/$pswd@$instance>/dev/null<<EOF
      set term off
      define report_type=$type
      define num_days=1
      define begin_snap=${tmp1_id}
      define end_snap=${tmp2_id}
      define report_name=${report_name}
      @${oracle_home}/rdbms/admin/awrrpt.sql
      exit;
EOF

    tmp1_id=${tmp2_id}
  done
}

# *******************************
# main routing
# *******************************
read_act
define_dur
generate_awr

Specify the Report Type

Would you like an HTML report, or a plain text report?
Enter 'html' for an HTML report, or 'text' for plain text
Defaults to 'html'
Enter value for report_type: text

Type Specified: text
End of Report
Report written to awrrpt_1_1789_1800.txt

[oracle@bspdev test]$ ls -l
total 692
-rw-r--r--. 1 oracle oinstall 180601 Jun 21 13:27 awrrpt_1_1789_1800.txt
-rw-r--r--. 1 oracle oinstall 515262 Jun 21 13:10 awrrpt_1_1796_1813.html