linux脚本文件中怎么从文件中读取数据并赋值给变量？

假设文件名称为tt.txt，则下列shell脚本可以将6个数字分别赋值给6个变量

i=1

for

lines

in

`cat

tt.txt`

do

case

${i}

in

1)

var1=${lines}

2)

var2=${lines}

3)

var3=${lines}

4)

var4=${lines}

5)

var5=${lines}

6)

var6=${lines}

esac

i=`expr

${i}

+

1`

done

echo

${var1}

echo

${var2}

echo

${var3}

echo

${var4}

echo

${var5}

echo

${var6}

#!/bin/bash

NR=$(wc -l ./hosttable.txt|cut -d " " -f 1 )

i=1

while [ $i -le $NR ]

do

ip=$(head -$i ./hosttable.txt|tail -1|cut -d " " -f 1)

name=$(head -$i ./hosttable.txt|tail -1|cut -d " " -f 2)

ping -c 1 $ip >/dev/null

if [ $? -ne 0 ] then

echo "Destination Host Unreachable.(name:$name,IP:$ip)"

fi

i=$(( $i + 1 ))

done

把上面的脚本和hosttable.txt放在同一目录下执行，hosttable.txt中ip和主机名用一个空格来间隔

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