$ cat print-printf.sh 
#!/bin/bash

echo $0 $1
if [ $1x == 1x ]; then
    echo "printf"
    awk '{for(i=1;i<5;i++){printf($i"\t")}}' test.txt
else
    echo "print"
    awk '{for(i=1;i<5;i++){print($i"\t")}}' test.txt
fi
 

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