Shell Variables(referencing and testing)

• Examples:

  echo $term
  
  echo ${term}
  echo $V[1]
  echo $V[2-3]
  echo $V[2-]
  set W = ${V[3]}
  
  set V = (abc def ghi 123)
  set N = $#V
  echo $?name
  echo ${?V}

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