如何将列添加到txt制表符分隔文件

Question

我有一些数据通过批处理文件从我的sql server数据库以制表符分隔格式导出。如何通过标题为“channel”的批处理脚本和标题下每行的文本“channel1”将文章添加到文件中？

Answer 1

@echo off
setlocal

set "file_path=F:\scriptests\textsql\Book1.txt"

break>tempfile
rem setlocal enableDelayedExpansion
set "firstline="
for /f "useback tokens=* delims=" %%A in ("%file_path%") do (
    if not defined firstline (
        rem after %%A the symbol is tab but not space
        echo %%A    "channel"
        set "firstline=."
    ) else (
        rem after %%A the symbol is tab but not space
        echo %%A    "channel1"
    )
)>>tempfile

rem first check created tempfile before uncomment the  line bellow
rem move /y tempfile "%file_path%"

endlocal