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Full Discussion: Need explanation a of command in linux
Top Forums Shell Programming and Scripting Need explanation a of command in linux Post 302577003 by balajesuri on Monday 28th of November 2011 01:46:38 AM
Old 11-28-2011
. <path/filename> will let the contents of that file be available to shell.

For e.g. you have a file "test.fn" (shown below) in the current directory. In it, you have written a function to add 2 numbers.

Code:
#! /bin/bash
add ()
{
    echo `expr $1 + $2`
}

Now, if you were to do this at the command prompt: ". test.fn", then the function "add" will be available for use at the command prompt.

You can do this at the command prompt: add 1 2
and the output will be 3

So the function add in test.fn file acts like a command. To unset this, you can say "unset add" and add will no longer be available at command prompt.

And try this line:
CM_ENV_FILE='/data/ds/dpr_ebicm_uat//etl/cm3_0/entities/BBME/parameters/cm.env'
(without spaces around '=' and the path/filename in sinqle quotes)
 

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LEARN ABOUT HPUX

add_directory

add directory(1m)														 add directory(1m)

NAME

       add directory - Adds a value to a modifiable, set-valued attribute (including application-defined attributes) of a directory

SYNOPSIS

       cdscp add directory directory-name attribute-name = attribute-value

ARGUMENTS

       The  full  name	of the directory.  The name of a particular attribute.	Specify only one attribute at a time.  See the cds_attributes file
       for the list of attributes that your application uses.  attribute-value The value of a particular attribute.  The value of an  application-
       defined	attribute  is  dependent  on the type of attribute.  See the cds_attributes file for the list of attributes and corresponding data
       types that your application uses.  If you enter a byte data type, you must enter an even number of digits in length.  You  can  only  enter
       pairs of hexadecimal values for user-defined attributes.

DESCRIPTION

       The add directory command adds a value to a modifiable, set-valued attribute (including application-defined attributes) of a directory.	If
       the attribute does not exist, this command creates it.  Usually, this task is performed through the client application.	See the DCE Admin-
       istration Guide for more information about attributes.

   Privilege Required
       You must have write permission to the directory.

NOTE

       This command is replaced at Revision 1.1 by the dcecp command and may not be provided in future releases of DCE.

EXAMPLE

       To  add the value ontario to the attribute myname of a directory named /.:/sales, read the cds_attributes file to verify that the attribute
       shown in the following display exists:

		 OID	     LABEL	     SYNTAX
	     1.3.22.1.3.91   myname	     char

       Enter the following command to assign the value ontario to the attribute myname: cdscp> add directory /.:/sales myname = ontario

RELATED INFORMATION

       Commands: remove directory(1m), show directory(1m)

       Books: OSF DCE Administration Guide

																 add directory(1m)
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