代码:

#!/bin/bash

echo 方法1
while read line
do
    echo $line;
done < testdata

echo ""
echo 方法2
cat testdata | while read line
do
    echo $line
done

echo ""
echo 方法3
oldIFS=${IFS};
IFS=$'\n';
for line in $(cat testdata)
do
    echo $line
done
IFS=${oldIFS};

 

文件 testdata:

abc
def
df ab cd
asas

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