bash中两个字符串之间的差异

发布时间：2020-12-15 21:59:29 所属栏目：安全来源：网络整理

导读：我有两个包含信息行的字符串.我想获得两个字符串中不同的行. 例： String1中： "This is line1This is line2This is line3" String2的： "This is line1This is linexThis is line2" 结果预期： diff string1 string2 is:"This is line3"diff string2 string

我有两个包含信息行的字符串.我想获得两个字符串中不同的行.
例：
String1中：

"This is line1
This is line2
This is line3"

String2的：

"This is line1
This is linex
This is line2"

结果预期：

diff string1 string2 is:
"This is line3"

diff string2 string1 is:
"This is linex"

解决方法

你可以使用comm：

$str1="This is line1
> This is line2
> This is line3"
$str2="This is line1
> This is linex
> This is line2"

$comm -23 <(echo "$str1" | sort) <(echo "$str2" | sort)
This is line3
$comm -23 <(echo "$str2" | sort) <(echo "$str1" | sort)
This is linex

（编辑：李大同）

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