UNIX for Dummies Questions & Answers

User1
User3
User4

typeset -i mCnt
typeset -i mTotOcc
while read mLine
do
  set -- `echo $mLine | sed 's/,/ /g'`
  mUser=$1
  shift
  mTotal=${#}
  mLineNoUser=`echo $mLine | sed "s/$mUser//"`
  mFlag=""
  mCnt=1
  while [ $mCnt -le ${mTotal} ]; do
    mField=$1
    mTotOcc=`echo "$mLineNoUser" | sed "s/$mField//" | egrep -c "$mField"`
    if [ $mTotOcc -gt 0 ]; then
      mFlag="DUPLICATE"
      break
    fi
    mCnt=$mCnt+1
    shift
  done
  if [ "$mFlag" = "" ]; then
    echo "User = "$mUser" has no duplicate."
  fi
done < input_file

#!/bin/sh

while read line ; do
        [ -z `echo $line | awk '{print $3}'` ] && continue
        [ -z `echo $line | tr ' ' '\n' | uniq -d` ] && echo $line | awk '{print $1}'
done < "$1"

typeset -i mCnt
typeset -i mTotOcc
while read mLine
do
  set -- `echo $mLine | sed 's/,/ /g'`
  mUser=$1
  shift
  mFlag=""
  mTotal=${#}
  if [ $mTotal -gt 1 ]; then
    mLineNoUser=`echo $mLine | sed "s/$mUser//"`
    mCnt=1
    while [ $mCnt -le ${mTotal} ]; do
      mField=$1
      mTotOcc=`echo "$mLineNoUser" | sed "s/$mField//" | egrep -c "$mField"`
      if [ $mTotOcc -gt 0 ]; then
        mFlag="DUPLICATE"
        break
      fi
      mCnt=$mCnt+1
      shift
    done
    if [ "$mFlag" = "" ]; then
      echo "User = "$mUser" has no duplicate."
    fi
  fi
done < input_file