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Top Forums Programming Python - store output of command to a variable Post 303007501 by atanubanerji on Friday 17th of November 2017 07:21:07 AM
Old 11-17-2017
Thank you very much Robin for your help.

I have to execute some action if the server is CentOS.

The server_description variable may or may not store CentOS key word among few other words. So I was thinking, if I could execute
"CentOS in server_description which would return either "True" or "False". If it is True, the python would perform some action. I have been advised to store the True or False value in another variable.

My problem is I am unable to store True or False in other variable, say, my_Check.

If I could do that, probably I could use the following -
Code:
if my_check == "True":
    do_something
else:
     do_otherthing

Could you please advice, how I can store a command's output, here, "CentOS in server_description in a variable (or any other python level command later) and use the value of the variable whenever required.
e.g.
Code:
server_description = "This is xyz abc of mno CentOS"
my_Check = "CentOS" in server_description
if my_Check == "True":
    print("This is CentOS")
else:
    print("This is NOT CentOS")

The output I am getting is "This is NOT CentOS"
CentOS 7.4 is OS version and Python 3.4.5
I could do it using shell, but I have been asked to use Python only, as the action to be performed based on the condition, if True or False, is already written in Python.
Please don't consider my objective is to print either CentOS or NOT CentOS, rather some other successfully written python code that I will be pasting in if or else section.

While testing, I found this, but not sure why it is not working...
Code:
>>> server_description = "CentOS"
>>> my_Check = "centos" in server_description
>>> my_Check
False
>>> my_Check = "CentOS" in server_description
>>> my_Check
True


Last edited by rbatte1; 11-17-2017 at 11:48 AM.. Reason: Converted HTML to CODE or ICODE tags and corrected some spelling
 

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gss_inquire_context(3)					     Library Functions Manual					    gss_inquire_context(3)

NAME
gss_inquire_context() - obtain information about a security context SYNOPSIS
DESCRIPTION
The routine provides information about the security context to the calling application. The calling application must first have called the routine for a handle for the credential. Input Parameters context_handle A handle that refers to the security context. Output Parameters src_name The name of the context initiator. If the context was established using anonymous authentication, and if the appli- cation invoking is the context acceptor, an anonymous name will be returned. Specify NULL if not required. context_handle The name of the context acceptor. If the context acceptor did not authenticate itself, and if the initiator did not specify a target name in its call to the value will be returned. Specify NULL if not required. lifetime_rec Returns the number of seconds for which the credential will remain valid. If the credential expired, the parameter returns a 0 (zero). If there is no credential expiration, the parameter returns the value If an expiration time is not required, specify NULL. targ_name The name of the context acceptor. Storage associated with this name must be freed by the application after use with a call to mech_type The security mechanism providing the context. Specify NULL if not required ctx_flags Specifies independent flags, each of which requests that the context support a service option. The following sym- bolic names are provided to correspond to each flag. The symbolic names should be logically ORed to form a bit-mask value. The True/False values are: True Credentials were delegated to the context acceptor. False No credentials were delegated. The True/False values are: True The context acceptor has been asked to authenticate itself. False The context initiator has not been asked to authenticates itself. The True/False values are: True Replayed signed or sealed messages will be detected. False Replayed messages will not be detected. The True/False values are: True Out-of-sequence signed or sealed messages will be detected. False Out-of-sequence signed or sealed messages will not be detected. The True/False values are: True Request that confidentiality service be made available False No per-message confidentiality service is required. The True/False values are: True Request that integrity service be be made available False No per-message integrity service is required. The True/False values are: True Do not reveal the initiator's identity to the acceptor. False Authenticate normally. cred_usage Returns one of the following values describing how the application can use the credential: If no usage information is required, specify NULL. mechs returns a set of security mechanisms supported by the credential. Specify NULL if not required. minor_status Returns a status code from the security mechanism. STATUS CODES
The following status codes can be returned: The routine was completed successfully. The referenced context could not be accessed. The credentials were invalid. The routine failed. Check the minor_status parameter for details. The routine could not access the credentials. AUTHOR
was developed by Sun Microsystems, Inc. SEE ALSO
gss_acquire_cred(3). The manpages for DCE-GSSAPI are included with the DCE-CoreTools product. To see those manpages add to gss_inquire_context(3)
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