goto in a one-line command

[skkk]

Hi,

I was wondering if there was a way to define a label and use a goto to this one in a one-line command. I can't find a solution to this problem, I made several attempts but nothing seems to work.

Thank you in advance.

[foxidrive]

Your question doesn't make sense.

You want to define a label, so there must be code after the label, and somehow you want to jump to the routine.
If you can explain what you need to do it may become clearer.

[skkk]

I'm just trying to make a while loop in a one-line command, no matter what the loop does.

[foxidrive]

It takes two lines. One to set the label and one to branch to the label.

:loop
goto :loop

[skkk]

thanks but i'm looking for a way to do it as a one-liner from the command line.

[foxidrive]

The same question arises: what are you trying to do?

[miskox]

Maybe this can help:

Code: Select all

for /L %i IN (1,1,1000) do dir&&ping -n 5 -w 1 127.0.0.1>NUL&&cls

In this way I sometimes check the progress of a file copy operation or something (to see if certain file makes a progress - gains in file size).

Saso

[jeb]

It takes two lines. One to set the label and one to branch to the label.

You want to define a label, so there must be code after the label, and somehow you want to jump to the routine.

It's possible, but there is another problem

Code: Select all

<:label <nul echo endless loop? & goto :label
echo end

endless loop?
end

The cause is, that a jump or a call to a label will always set the execution position to the line AFTER the label.
So this can be useful with a CALL but not very useful with a GOTO.

The syntax of labels are described at Call a label as a variable
Or at Experiment with call and label

Btw. I'm using this to initialize my batchLibrary

jeb

[foxidrive]

Code: Select all

<:label <nul echo endless loop? & goto :label
echo end

endless loop?
end

FWIW this produces the same output.

Code: Select all

@echo off
<:label <nul echo endless loop?
echo end
pause

[jeb]

Yes obviously, but you can see the difference if you change the GOTO with a CALL statement

Code: Select all

<:label <nul echo endless loop? & CALL :label & echo I'm in a label line
echo end "%0"
exit /b

endless loop?
end ":label"
I'm in a label line
end "test"

jeb

[foxidrive]

Yes, I see that jeb.

I really do wonder what the OP is trying to do on the command line though.

My thought is that a for-in-do might do what they want to do, but they aren't speaking.