const fs=require("fs")
const reader=fs.createReadStream("/Users/zmx/Downloads/day2-Solidity.pdf")
const writer=fs.createWriteStream(Date.now()+".pdf")
reader.pipe(writer)
/*let total=0
let data=""
reader.on("data",d => {
    total+=d.length
    writer.write(d)
})
reader.on("end",() => {
    console.log(total)
})*/
 

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