Shell Programming and Scripting

 $ ruby -0777 -ne 'puts $_.gsub(/\/\*.[^\\][^\*]*\*\//m,"")' file

Some text
Text1
Text2
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Note this text 
Note here again

sed '
:t
s|\(.*\)/\*.*\*/|\1|
tt
/\/\*/!b
N
bt
'

sed -e:t -e's|\(.*\)/\*.*\*/|\1|;tt;/\/\*/!b;N;bt'

#!/usr/bin/ksh
typeset -i mCnt
mOpenFlag="N"
while read mLine
do
  if [[ "${mOpenFlag}" = "Y" ]]; then
    mCnt=`echo "${mLine}" | egrep -c '\*/'`
    if [[ ${mCnt} != 0 ]]; then
      mOpenFlag="N"
      mTmpLine=`echo "${mLine}" | sed -e 's#.*\*/##'`
      if [[ "${mTmpLine}" != "" ]]; then
        echo "${mTmpLine}"
      fi
    fi
    continue
  fi
  mTmpLine=`echo "${mLine}" | sed -e 's#/\*.*\*/##'`
  mCnt=`echo "${mTmpLine}" | egrep -c '/\*'`
  if [[ ${mCnt} != 0 ]]; then
    mOpenFlag="Y"
    mTmpLine=`echo "${mTmpLine}" | sed -e 's#/\*.*##'`
  else
    mCnt=`echo "${mTmpLine}" | egrep -c '\*/'`
    if [[ ${mCnt} != 0 ]]; then
      mOpenFlag="N"
      mTmpLine=`echo "${mTmpLine}" | sed -e 's#.*\*/##'`
    fi
  fi
  if [[ "${mTmpLine}" != "" ]]; then
    echo "${mTmpLine}"
  fi
done < input_file