Batch file: Combine echos into one line

Question

I want to dump all the file names in a folder without extension into a text file. They should be in one line separated by commas.

So in my folder I have

File1.bin
File2.bin
....

With

(for %%a in (.\*.bin) do @echo %%~na,) >Dump.txt

I got

File1,
File2,

But what I want in the end is a text file with, so one long combined string.

File1,File2,...

I'm kinda stuck here and probably need something else than echo. Thanks for trying to help.

So why not assign them to a variable in the FOR command? – Squashman Nov 26 '19 at 23:37 — Squashman, Nov 26 '19 at 23:37

npocmaka · Accepted Answer · 2019-11-26T20:17:45.910

2

Try like this:

@echo off

setlocal enableDelayedExpansion
for %%a in (.\*.txt) do (
    <nul set /p=%%~nxa,
)

check also the accepted answer here and the dbenham's one.

edited Nov 26 '19 at 20:17

answered Nov 26 '19 at 19:56

npocmaka

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Thanks a lot, also pointing out the other one, might be useful for the next problem. – Daraan Nov 27 '19 at 09:28

score 1 · Answer 2 · answered Nov 27 '19 at 13:35

You could also leverage powershell from a batch-file for this task:

@"%__APPDIR__%WindowsPowerShell\v1.0\powershell.exe" -NoProfile -Command "( Get-Item -Path '.\*' -Filter '*.bin' | Where-Object { -Not $_.PSIsContainer } | Select-Object -ExpandProperty BaseName ) -Join ',' | Out-File -FilePath '.\dump.txt'"

This could probably be shortened, if necessary, to:

@PowerShell -NoP "(GI .\*.bin|?{!$_.PSIsContainer}|Select -Exp BaseName) -Join ','>.\dump.txt"

Batch file: Combine echos into one line

2 Answers2