Question

我有一个输出yileds 2列的变量： echo＆＃34; $ SIZE_TO_SOCKET＆＃34;

A 256
B 256

我的全球基本上是比较2个数字并打印按摩

类似：如果匹配：成功：A（256）与B（256）相同

或错误：如果数字不是euqal，则A（256）不是B（256）的唯一

我的代码是：

while IFS= read -r i;do
        SIZE=$(echo "$i"|awk '{print $2}')
        SOCKET=$(echo "$i"|awk '{print $1}')
        if [[ "$SOCKET" = "A" ]] ; then
                SOCKET_A="$SIZE"
        elif [[ "$SOCKET" = "B" ]] ; then
               SOCKET_B="$SIZE"
        fi

        if [[ $SOCKET_A -ne $SOCKET_B]];then
            echo "error: SOCKET_A is not equal to SOCKET_B"
        elif [[ $SOCKET_A -eq $SOCKET_B]];then
            cho "success: SOCKET_A is  equal to SOCKET_B"
        fi
done <<< "$SIZE_TO_SOCKET"

代码不会产生任何输出，无论如何都有更短更优雅的方式

Answer 1

input="A 256\nB 256"
arr=($(echo -e "$input"))
if [[ "${arr[1]}" -eq "${arr[3]}" ]]
then
    echo "success: ${arr[0]}(${arr[1]}) is equal to ${arr[2]}(${arr[3]})"
else
    echo "error: ${arr[0]}(${arr[1]}) is not equal to ${arr[2]}(${arr[3]})"
fi

用输入替换input变量，此脚本输出

success: A(256) is equal to B(256)

两个相同的数字或

error: A(257) is not equal to B(256)

两个不同的数字。

Answer 2

这是我最终解决的非常简单的解决方案：

line1=$(echo "$SIZE_TO_SOCKET" | awk 'NR == 1')
line2=$(echo "$SIZE_TO_SOCKET" | awk 'NR == 2')

key1=$(echo "$line1" | cut -d ' ' -f 1)
value1=$(echo "$line1" | cut -d ' ' -f 2)

key2=$(echo "$line2" | cut -d ' ' -f 1)
value2=$(echo "$line2" | cut -d ' ' -f 2)

if [[ $value1 -eq $value2 ]]; then
    echo "Success: $key1($value1) is equal to $key2($value2)"
else
    echo "Error: $key1($value1) is not equal to $key2($value2)" 
fi

Answer 3

您的代码有什么问题？：

您的代码“已更正”将是：

print

您需要在不同的地方使用空格，例如SIZE_TO_SOCKET=$(printf '41203235360a42203235360a' | xxd -p -r) while IFS= read -r i;do SIZE=$(echo "$i"|awk '{print $2}') SOCKET=$(echo "$i"|awk '{print $1}') if [[ "$SOCKET" = "A" ]] ; then SOCKET_A="$SIZE" elif [[ "$SOCKET" = "B" ]] ; then SOCKET_B="$SIZE" fi if [[ $SOCKET_A -ne $SOCKET_B ]] ; then echo "error: SOCKET_A is not equal to SOCKET_B" elif [[ $SOCKET_A -eq $SOCKET_B ]] ; then echo "success: SOCKET_A is equal to SOCKET_B" fi done <<< "$SIZE_TO_SOCKET" {原始代码为$SOCKET_B ]] ; then）

“已更正”代码的输出为：

$SOCKET_B]];then

如果您使用error: SOCKET_A is not equal to SOCKET_B success: SOCKET_A is equal to SOCKET_B，则会获得：

bash -x YOUR_SCRIPT

仔细阅读;你的逻辑错误。

这可能是您的代码的更正版本：

++ printf 41203235360a42203235360a
++ xxd -p -r
+ SIZE_TO_SOCKET='A 256
B 256'
+ IFS=
+ read -r i
++ echo 'A 256'
++ awk '{print $2}'
+ SIZE=256
++ echo 'A 256'
++ awk '{print $1}'
+ SOCKET=A
+ [[ A = \A ]]
+ SOCKET_A=256
+ [[ 256 -ne '' ]]
+ echo 'error: SOCKET_A is not equal to SOCKET_B'
error: SOCKET_A is not equal to SOCKET_B
+ IFS=
+ read -r i
++ echo 'B 256'
++ awk '{print $2}'
+ SIZE=256
++ echo 'B 256'
++ awk '{print $1}'
+ SOCKET=B
+ [[ B = \A ]]
+ [[ B = \B ]]
+ SOCKET_B=256
+ [[ 256 -ne 256 ]]
+ [[ 256 -eq 256 ]]
+ echo 'success: SOCKET_A is  equal to SOCKET_B'
success: SOCKET_A is  equal to SOCKET_B
+ IFS=
+ read -r i

输出是：

SIZE_TO_SOCKET=$(printf '41203235360a42203235360a' | xxd -p -r)

while IFS= read -r i;do
        SIZE=$(echo "$i"|awk '{print $2}')
        SOCKET=$(echo "$i"|awk '{print $1}')
        if [[ "$SOCKET" = "A" ]] ; then
                SOCKET_A="$SIZE"
        elif [[ "$SOCKET" = "B" ]] ; then
               SOCKET_B="$SIZE"
        fi
done <<< "$SIZE_TO_SOCKET"

if [[ $SOCKET_A -ne $SOCKET_B ]] ; then
        echo "error: SOCKET_A is not equal to SOCKET_B"
elif [[ $SOCKET_A -eq $SOCKET_B ]] ; then
        echo "success: SOCKET_A is  equal to SOCKET_B"
fi

如果您使用success: SOCKET_A is equal to SOCKET_B，则会获得：

bash -x YOUR_CORRECTED_SCRIPT

bash比较多列的数值

3 个答案: