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    No - not unless /dir1/ definitely already exists. Use mkdir -p /dir1/dir2 and forget the test. Commented Feb 20, 2015 at 6:47
  • ya, Dir1 already existed, it was the end of the path of my home directory. We had to run it as a test, I didn't get the extra credit for it and was wondering if it was incorrect. Thank you. Commented Feb 20, 2015 at 6:55
  • mkdir -p will fail as well if dir2 exists as a file other than a directory - or if permissions forbid you to create dirs for whatever reason. I usually do like mkdir -p ./target/dir && cd ./target/dir || exit Commented Feb 20, 2015 at 7:06
  • Assuming there exists no issues with permissions,and that dir2 doesn't already exist as a file, my test will work, correct? I can't run to check atm. Commented Feb 20, 2015 at 7:10
  • I'm not using mkdir -p. Dir1 already exists, i'm testing to see if dir2 exists as a subdirectory of dir1, and to create it only if it doesn't exist. Why would I need to test for dir1 as well? Commented Feb 20, 2015 at 7:18