从文本文件的最后一行删除单双引号

Question

文本文件末尾总是有一个双引号......

"1","abc","123"
"2","abcd","456"
"3","abce","789"
"

我需要一个命令才能通过cmd.exe来删除最后一行（单引号）...

"1","abc","123"
"2","abcd","456"
"3","abce","789"

Answer 1

延长了我的previous answer：

@echo off
copy t.txt old.txt
<nul >"new.txt" set /p x="""
>>"new.txt" (type "old.txt" |findstr /v "^.$")
rem move /y "old.txt" "new.txt"
type new.txt

附加findstr /v排除了包含单个字符的行（使用"很难处理，但我想，“单字符行”已经足够了）