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Full Discussion: How to analyse results of grep
Top Forums Shell Programming and Scripting How to analyse results of grep Post 302682949 by emoshaya on Tuesday 7th of August 2012 04:34:36 AM
Old 08-07-2012
How to analyse results of grep
Hi all,

I'm working with a peice of software that runs on Linux that allows planning trips in cars through maps. This software has different variations depending on the type of car, e.g. BMW, Audi, Hyundai, etc... Each variation has a dependency on common external components that are not compiled with the main source code and must be installed seperately in /local_components/... Some variations also have dependencies on components that are not required by other variations.

The standard way of knowing which components to install for the customer is to run a shell script that sets environment variables based on what variant you are wishing to build set in a config spec. This will set variables for all the external components required for compilation and runtime. The component variables have a standard naming convention based on versions. So there are some components that are upto version 2.0 and some with version 1.0, etc. Naming convention e.g. GPS_COMP_VER_2.0, COMMON_UTILITIES_VER_4.0. Once I determine what components are required by manually grepping the environment variables script I need to manually install the required components one by one by using rpm -i

I need to create a shell script to grep this script for all required components, so far I have this: env | grep '_VER_[0-9\-]*$'

I want to be able to analyse the results of this grep one by one and to then find the rpm package in a component library on a server. based on the version and install it automatically.

How would you suggest I go about this task? I am relatively new to shell scripting and am still learning on the job. So, any advice will be much appreciated!

Thanks!
 

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LEARN ABOUT SUNOS

wsreg_get_child_components

wsreg_add_child_component(3WSREG)		    Product Install Registry Library Functions			 wsreg_add_child_component(3WSREG)

NAME

       wsreg_add_child_component, wsreg_remove_child_component, wsreg_get_child_components - add or remove a child component

SYNOPSIS

       cc [flag ...]  file ...-lwsreg [library ...]
       #include <wsreg.h>

       int wsreg_add_child_component(Wsreg_component *comp, const Wsreg_component *childComp);

       int wsreg_remove_child_component(Wsreg_component *comp, const Wsreg_component *childComp);

       Wsreg_component **wsreg_get_child_components(const Wsreg_component *comp);

DESCRIPTION

       The  wsreg_add_child_component() function adds the component specified by childComp to the list of child components contained in the compo-
       nent specified by comp.

       The wsreg_remove_child_component() function removes the component specified by childComp from the list of child components contained in the
       component specified by comp.

       The wsreg_get_child_components() function returns the list of child components contained in the component specified by comp.

RETURN VALUES

       The  wsreg_add_child_component() function returns a non-zero value if the specified child component was successfully added; otherwise, 0 is
       returned.

       The wsreg_remove_child_component() function returns a non-zero value if the specified child component was successfully removed;	otherwise,
       0 is returned.

       The  wsreg_get_child_components() function returns a null-terminated array of Wsreg_component pointers that represents the specified compo-
       nent's list of child components.  If the specified component has no child components,  NULL  is	returned.  The	resulting  array  must	be
       released by the caller through a call to wsreg_free_component_array(). See wsreg_create_component(3WSREG).

USAGE

       The  parent-child  relationship between components in the product install registry is used to record a product's structure.  Product struc-
       ture is the arrangement of features and components that make up a product.  The structure of installed products can be displayed  with  the
       prodreg GUI.

       The  child  component must be installed and registered before the parent component can be.  The registration of a parent component that has
       child components results in each of the child components being updated to reflect their parent component.

       Read access to the product install registry is required in order to use these functions because these relationships are	held  with  light-
       weight component references that can only be fully resolved using the registry contents.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       prodreg(1M),    wsreg_can_access_registry(3WSREG),    wsreg_create_component(3WSREG),   wsreg_initialize(3WSREG),   wsreg_register(3WSREG),
       wsreg_set_parent(3WSREG), attributes(5)

SunOS 5.10							    22 Sep 2000 				 wsreg_add_child_component(3WSREG)
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