在bash中连接包含多行的变量

Question

鉴于echo "$varA"：

Astringline1
Astringline2
Astringline3

和echo "$varB"：

Bstringline1
Bstringline2
Bstringline3

我想获得：

Astringline1,Bstringline1
Astringline2,Bstringline2
Astringline3,Bstringline3

echo "$varA,$varB"产生：

Astringline1
Astringline2
Astringline3,Bstringline1
Bstringline2
Bstringline3

Answer 1

您可以使用paste命令：

varA=$'Astringline1\nAstringline2\nAstringline3'
varB=$'Bstringline1\nBstringline2\nBstringline3'
paste -d, <(echo "$varA") <(echo "$varB")

输出

Astringline1,Bstringline1
Astringline2,Bstringline2
Astringline3,Bstringline3