shell讀取文件每一行的方式

1、使用read命令讀取一行數據

while read myline
do
 echo "LINE:"$myline
done < datafile.txt

 2、使用read命令讀取一行數據

cat datafile.txt | while read myline
do 
 echo "LINE:"$myline
done

 3、#讀取一行數據

cat datafile.txt | while myline=$(line)
do 
 echo "LINE:"$myline
done

 4、#讀取一行數據

while myline=$(line)
do 
 echo "LINE:"$myline
done < datafile.txt

 5、#使用read命令讀取變量數據

cat datafile.txt | while read paraa parab parac
do
 echo "PARAA:"$paraa
 echo "PARAB:"$parab
 echo "PARAC:"$parac
done

 6、#使用read命令讀取變量數據

while read paraa parab parac
do
 echo "PARAA:"$paraa
 echo "PARAB:"$parab
 echo "PARAC:"$parac
done < datafile.txt