How do I check if a directory exists?

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How do I check if a directory exists?

Original Message

Name: Vikram
Date: March 6, 2001 at 07:34:32 Pacific
Subject: How do I check if a directory exists?

Comment:

I am writing a program in Java that creates directories in the UNIX platform (I am using the Runtime.exec("...") call, for wihch my parameter will be a UNIX command such as mkdir, rmdir etc.
Now waht I want to do is, first ask a user where he wishes to store the files, and check if that directory exists. If it does exist, then I just save those files there (I have the code for the saving bit), else I create the directory and then save the files in there. So I first need to check the validity and the existence of the directory the user wishes to create. IS there a UNIX command that I can use to see if a directory exists?

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Response Number 1

Name: Siddharth
Date: March 6, 2001 at 15:40:51 Pacific
Subject: How do I check if a directory exists?

Reply: (edit)

From withing Java , you can use java.io.File to check if the directory exists and create it if it doesnt.

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Response Number 2

Name: Wolfram Kraft
Date: March 7, 2001 at 00:11:51 Pacific
Subject: How do I check if a directory exists?

Reply: (edit)

hi,
a simple unix-command would look like
test -d /directory && action
test checks, if /directory exist and if it is a directory (switch -d).
the construct "&& action" is executed, if the test results in ok (returncode 0)
see the man-page for test.
greet$
Wolfie

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Response Number 3

Name: Glen Coakley
Date: March 20, 2001 at 15:15:41 Pacific
Subject: How do I check if a directory exists?

Reply: (edit)

Why check just
mkdir -p directory

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