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Top Forums Shell Programming and Scripting How to parse the variable in .mk file? Post 303002937 by bakunin on Tuesday 5th of September 2017 11:12:45 AM
Old 09-05-2017
Quote:
Originally Posted by ricky-row
Thanks Bakunin,
But When I tried your code in the script its not stopping. It keeps on printing TEST=Name infinitely. Could you give some correction on this, please
That is - as i have said already - because the format of your input string is not in the same format as in your post #1. This:

Code:
input=NEED="TEST=Name WORK=Ps DEL=let"

does not make any sense syntactically and it is not of the form item1=value1 item2=value2 item3=value3 ... which would be necessary for my algorithm to work - as i have already stated in my first answer!

Give me a REAL EXAMPLE OF WHAT YOU WANT TO PROCESS and i will give you a real solution, because what you have shown me is not only different than what you first asked to process, it will also generate a syntax error if you, to quote yourself:

Quote:
I need to echo and export each variable like TEST, WORK. DEL
because

Code:
input=NEED="TEST=Na...

is not a syntactically correct shell statement. Otherwise, tell me what the expected outcome should be. Show me the statement my script should produce from this input.

bakunin
 

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rc.config(4)						     Kernel Interfaces Manual						      rc.config(4)

NAME
rc.config, rc.config.d - files containing system configuration information SYNOPSIS
DESCRIPTION
The system configuration used at startup is contained in files within the directory The file sources all of the files within and and exports their contents to the environment. /etc/rc.config The file is a script that sources all of the scripts, and also sources To read the configuration definitions, only this file need be sourced. This file is sourced by whenever it is run, such as when the command is run to transition between run states. Each file that exists in is sourced, without regard to which startup scripts are to be executed. /etc/rc.config.d The configuration information is structured as a directory of files, rather than as a single file containing the same information. This allows developers to create and manage their own configuration files here, without the complications of shared ownership and access of a common file. /etc/rc.config.d/* Files This is where files containing configuration variable assignments are located. Configuration scripts must be written to be read by the POSIX shell, and not the Bourne shell, or In some cases, these files must also be read and possibly modified by control scripts or the sam program. See sd(4) and sam(1M). For this reason, each variable definition must appear on a separate line, with the syntax: No trailing comments may appear on a variable definition line. Comment statements must be on separate lines, with the comment character in column one. This example shows the required syntax for configuration files: Configuration variables may be declared as array parameters when describing multiple instances of the variable configuration. For example, a system may contain two network interfaces, each having a unique IP address and subnet mask (see ifconfig(1M)). An example of such a dec- laration is as follows: Note that there must be no requirements on the order of the files sourced. This means configuration files must not refer to variables defined in other configuration files, since there is no guarantee that the variable being referenced is currently defined. There is no protection against environment variable namespace collision in these configuration files. Programmers must take care to avoid such prob- lems. /etc/TIMEZONE The file contains the definition of the environment variable. This file is required by POSIX. It is sourced by at the same time the files are sourced. SEE ALSO
rc(1M). rc.config(4)
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