The Proteas' lone defeat in 13 one-day internationals against Bangladesh came during the 2007 World Cup in the Caribbean when the Tigers secured a 67-run win on a turning track in Providence, Guyana.
After Mohammad Ashraful scored 87 to lift Bangladesh to 251-8, South Africa were shot out for 184 with left-arm spinner Abdur Razzak claiming 3-25.
"We are more street-smart now when we play teams from the sub-continent," said Smith ahead of the day game which Bangladesh need to win to make the quarter-finals.
"We have a better understanding of how to go about it. They are a team that likes to play on the front foot. We will plan well for them."
South Africa are the only team in Group B to have qualified for the quarterfinals, with four others - India, West Indies, Bangladesh and England - vying for the remaining three berths over the weekend.
England's dramatic win over the West Indies in Chennai on Thursday ruined Bangladesh's hopes of easing into the knock-out rounds without having to contend with South Africa's firepower.
Only a victory over the Proteas will lift the Tigers into the last eight.
Smith said revenge was not on his mind after the World Cup loss four years ago.
"There are no added emotions, no talk of revenge," he said. "We have played Bangladesh a fair bit after that. This is just another occasion."
"It's obviously a big game for Bangladesh and they will be motivated to do well in front of their passionate crowds.
"They will be under a lot of pressure and we will try and force them to do things on the field they don't want to do.
"The wicket seems the same it was when we last played here in 2008. It will turn and there will also be a bit of reverse swing.
"Bangladeshi spinners have bowled 41 overs at an average in every match. We have studied their videos and will be well-prepared to deal with any situation."
Smith dismissed suggestions that his team will use the game as a warm-up for the quarterfinals.
"We take it one match at a time and our motivation is to win every match we play," the captain said.
"It's great we have already qualified. We have exceeded expectations and now want to build on that."
Smith declined to reveal if pace spearheads Dale Steyn or Morne Morkel will be rested ahead of the more important games.
"For the first time in the tournament, we have a fully fit squad to pick from. Everyone is available for selection," he said.
Left-arm seamers Lonwabo Tsotsobe and Wayne Parnell could be drafted in if Steyn, who picked up a minor side strain against Ireland on Tuesday, and Morkel are rested.
Leg-spinner Imran Tahir has also recovered from a fractured thumb and key batsman AB de Villiers is back after missing the Irish game with a thigh muscle strain.
Smith rules out another Bangladesh shock
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