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Full Discussion: Linux/UNIX Bash Shell Script trouble help needed!!
Homework and Emergencies Homework & Coursework Questions Linux/UNIX Bash Shell Script trouble help needed!! Post 302791963 by Corona688 on Tuesday 9th of April 2013 01:35:44 PM
Old 04-09-2013
Quote:
Originally Posted by TomFord1
Thx Corona688
I'm extremely new to the script writing and just don't get it but I'm putting it together. I understand the "echo "dir already exist" thx I will make that change.
I don't know what you're talking about, I didn't mention that.
Quote:
But i'm not understanding the "exit 1"
It means, quit the script early with an error code. All programs return a number when they quit. Zero means success. Nonzero means failure of some sort. 'if' statements use these codes.

Quote:
An are you saying I could've wrote

if ! -d /home/AC_Drywall/MIS/Production/Marketing /home/AC_Drywall/MIS/Project1/...... all on one line and it would've created all of them with out doing it over and over again.
No, I'm saying you could've done:
Code:
if ! mkdir -p /path/to/dir1 /path/to/dir2 /path/to/dir3 /path/to/dir4 ...
then
        echo "Couldn't create directories"
        exit 1
fi

...and it would create them all without going through it over and over again.

You don't need -d at all. mkdir -p checks for you.

You can put any command in an if-statement, mkdir included. Any command returns an error code.
 

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LEARN ABOUT DEBIAN

dpns-mkdir

DPNS-MKDIR(1)							DPNS User Commands						     DPNS-MKDIR(1)

NAME

       dpns-mkdir - make DPNS directory in the name server

SYNOPSIS

       dpns-mkdir [-m mode] [-p] path...

DESCRIPTION

       dpns-mkdir creates the specified DPNS directories in the name server.

       This  requires  write permission in the parent directory.  The owner ID and group ID of the new directories are set to the requestor's real
       user ID and group ID, respectively.

       path   specifies the DPNS pathname.  If path does not start with /, it is prefixed by the content of the DPNS_HOME environment variable.

       The dpns-mkdir command has the following options:

       -m     specifies the mode to be used.  Default mode is 777.

       -p     creates all the non-existing parent directories first.  The mode set for the created intermediate directories is the logical differ-
	      ence between 0777 and the user umask but at least 0300.

EXIT STATUS

       This program returns 0 if the operation was successful or >0 if the operation failed.

SEE ALSO

       Castor_limits(4), dpns_chmod(3), dpns_mkdir(3), dpns_umask(3)

AUTHOR

       LCG Grid Deployment Team

DPNS
							   $Date: 2001/10/04 12:12:54 $ 					     DPNS-MKDIR(1)
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