bash script to get data from csv file and run command with the parsed info

parse_csv.sh

#!/bin/bash
#=====================================================
#== USAGE: HW_bmc_conf.sh [csvFilename] <SerialNumber>
#== Return:
#==   0 -- normal
#==   1 -- Args error
#==   2 -- imana configuration file is not exist
#==   3 -- The Server with given serialnumber is NOT in csv File
#=====================================================

currentPath=`pwd`/

pushd "`dirname "$0"`" >> /dev/null
USAGE="--------------------------------------------\nUSAGE: HW_bmc_conf.sh [csvFilename] <SerialNumber>"
default_csvFile=svrinfo.csv

# Check arguments
if [ $# -gt 2 ]; then
  echo "Error ID 1: Too much args, the maximum args number is 2."
  echo -e $USAGE
  exit 1
elif [ $# -eq 2 ]; then
  csvFile=$1
  if ! [[ "$csvFile" =~ ^.+\.csv$ ]];then
    echo "the 1st arg should be a filename end with .csv"
    echo -e $USAGE
    exit 1
  fi
  serialnumber=$2
elif [ $# -eq 1 ]; then
  csvFile=default_csvFile
  serialnumber=$1
else
  echo "Please send at least 1 argument"
  echo -e $USAGE
  exit 1
fi

if ! [[ "$serialnumber" =~ ^[a-zA-Z0-9]+$ ]];then
  echo "serialnumber could only contain upper or lower case letters and numbers."
  echo -e $USAGE
  exit 1
fi

# Check if csv file is existing
function get_key_index()
{
  local _xrsh_tmp
  local _xrsh_cnt=0
  local _xrsh_array=(`echo "$1"`)
  for _xrsh_tmp in ${_xrsh_array[*]}; do
    if [[ "$_xrsh_tmp" = "$2" ]]; then
      echo $_xrsh_cnt
      return
    fi
    _xrsh_cnt=$(( $_xrsh_cnt + 1 ))
  done
  echo "-1"
}

if ! [[ "$csvFile" =~ / ]]; then
  csvFile=$currentPath/$csvFile
elif ! [[ "$csvFile" =~ ^/ ]]; then
  csvFile=$currentPath/$csvFile
fi
targetFile=$csvFile

echo "target file >>> "$targetFile

if ! [ -e $targetFile ]; then
  echo "$csvFile could not be found."
  exit 2
fi

# filter out server info in csv file with serial number
_header_columns=`head -1 $csvFile`
OLD_IFS=$IFS
IFS=","
_header_columns=($_header_columns)
IFS=$OLD_IFS

# loop through header columns
#for _header in ${_header_columns[@]}
#do
  #echo `get_key_index "${_header_columns[*]}" $_header`
#done

svrConf=( `grep $serialnumber $targetFile` )

if [ ! $svrConf ]; then
  echo "Error ID: 3 The SN: $serialnumber is not in $targetFile"
  exit 3
fi

OLD_IFS=$IFS
IFS=","
svrConf=($svrConf)
IFS=$OLD_IFS

#================================================================
#index=`get_key_index "${_header_columns[*]}" "ILO_CONF"`
#echo $index
#echo ${svrConf[$index]}
#if [ $index -lt 0 ] || [ "${svrConf[$index]}" = "FALSE" ] || [ "${svrConf[$index]}" = "false" ] \
  #|| [ "${svrConf[$index]}" = "false" ]
#then
  #echo "Not Allowed to Configure ILO, EXIT!"
  #exit 0
#fi
#================================================================

# get IP configuration
declare -a netItems=('ILO_LOCATE' 'ILO_IPADDR' 'ILO_NETMASK' 'ILO_GATEWAY' 'ILO_DNSPRI' 'ILO_DNSSEC');
declare -a netSettings
COUNTER=0
for item in "${netItems[@]}"
do
  index=`get_key_index "${_header_columns[*]}" $item`
  if [ $index -lt 0 ] || [ -z "${svrConf[$index]}" ]; then
    echo $item" is empty, EXIT"
    exit 0
  fi
  #echo $item"<==>"${svrConf[$index]}
  netSettings[$COUNTER]=${svrConf[$index]}
  COUNTER=$COUNTER+1
done

# =========Start iMana Setting==========
modprobe ipmi_msghandler
modprobe ipmi_devintf
modprobe ipmi_si

if [ -z `which ipmitool` ]; then
  echo 'ipmitool command is not available'
else
  # ipmitool LAN Configuration
  ipmitool lan set 1 ipsrc static
  ipmitool lan set 1 ipaddr ${netSettings[1]}
  ipmitool lan set 1 netmask ${netSettings[2]}
  ipmitool lan set 1 defgw ipaddr ${netSettings[3]}
  #ipmitool lan set 1 defgw macaddr 00:0e:0c:aa:8e:13
  #ipmitool lan set 1 arp respond on
  #ipmitool lan set 1 auth ADMIN MD5
  #ipmitool lan set 1 access on
  ipmitool lan print 1

  # ipmitool User Configuration
  ipmitool user set name 2 root
  ipmitool user set password 2 razor
  ipmitool channel setaccess 1 2 link=on ipmi=on callin=on privilege=4
  ipmitool user enable 2
fi

#==========End iMana Setting==============

popd >> /dev/null
exit 0