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George2 04-25-2006 05:11 AM
About -p Option Of Mkdir Command
 
Hello everyone,


I have read through the Linux man page and also info page of -p option of mkdir command. But I still do not understand what it means, especially missing parent directories.

Could anyone show me an example about how to use -p please?


thanks in advance,
George

reddazz 04-25-2006 05:15 AM
Lets say I want to create a subdirectory called linux in a directory called games. If games doesn't already exist, I can do "mkdir games" and then cd into games and do "mkdir linux". An easier way would be to do "mkdir -p games/linux". This creates games (the parent) as well as a subdirectory called linux at the same time.

T.Hsu 04-25-2006 05:24 AM
Example:

Code:
test -d $HOME/test || echo "Not exist"
Not exist
mkdir -p $HOME/test/foo/bar
test -d $HOME/test/foo/bar && { echo "Exist"; } || echo "Not exist"
Exist
You see, `mkdir -p' creates directory's parent even "grand parent" directory when they are missing.

George2 04-25-2006 06:30 AM
Thank you, reddazz!


Quote:
Originally Posted by reddazz
Lets say I want to create a subdirectory called linux in a directory called games. If games doesn't already exist, I can do "mkdir games" and then cd into games and do "mkdir linux". An easier way would be to do "mkdir -p games/linux". This creates games (the parent) as well as a subdirectory called linux at the same time.
You have answered my question.


regards,
George

George2 04-25-2006 06:33 AM
Thanks T.Hsu!


Quote:
Originally Posted by T.Hsu
Example:

Code:
test -d $HOME/test || echo "Not exist"
Not exist
mkdir -p $HOME/test/foo/bar
test -d $HOME/test/foo/bar && { echo "Exist"; } || echo "Not exist"
Exist
You see, `mkdir -p' creates directory's parent even "grand parent" directory when they are missing.
Now I understand that -p is used to created upper level directories if they do not exist. I have also tested on my Linux machine that if -p is not specified and the upper level directories do not exist, mkdir will return error.


regards,
George


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