shell读取文件每一行的方式

1 -- SHELL读取文件的方法

#使用read命令读取一行数据

while read myline

do

 echo "LINE:"$myline

done < datafile.txt

#使用read命令读取一行数据

cat datafile.txt | while read myline

do 

 echo "LINE:"$myline

done

#读取一行数据

cat datafile.txt | while myline=$(line)

do 

 echo "LINE:"$myline

done

#读取一行数据

while myline=$(line)

do 

 echo "LINE:"$myline

done < datafile.txt

#使用read命令读取变量数据

cat datafile.txt | while read paraa parab parac

do

 echo "PARAA:"$paraa

 echo "PARAB:"$parab

 echo "PARAC:"$parac

done

#使用read命令读取变量数据

while read paraa parab parac

do

 echo "PARAA:"$paraa

 echo "PARAB:"$parab

 echo "PARAC:"$parac

done < datafile.txt