files directory not found?

GoodMorning, I ust want torun a script where it could give a value of zero if the selected directory doesn't exist.

It could be:

if dir C:\a == 'not found'
    B=0
else
    B=1
end

Actually i wanted an errormessage tho show up in gui, but that I can do by myself. Thanks

Answer 1

[Guillaume]

Use exist:

if exist('C:\a', 'dir')

Answer 2

[Stephen23]

Use exist and also check for the correct output value:

if exist('C:\a', 'dir')==7

See the documentation for the list of output values.

[Guillaume]

Well, if you specify the 'kind' (as 'dir'), then the output is either 7 or 0. Hence you don't actually need the comparison.

it does not hurt to be explicit though.

[Stephen23]

@Guillaume: agreed that it is not strictly required, but it might make the code a bit more robust to future code changes (poorly managed find-and-replace, for example).