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Full Discussion: Help understanding what this ls -l command is checking in a script
Top Forums UNIX for Beginners Questions & Answers Help understanding what this ls -l command is checking in a script Post 303039570 by greavette on Wednesday 9th of October 2019 06:17:28 PM
Old 10-09-2019
Help understanding what this ls -l command is checking in a script
Hello,

we have a script that has the two following lines:

Code:
ssh -qno StrictHostKeyChecking=no -o ConnectTimeout=1 user@IP 'ls -l /home/opsmgrsvc >/dev/null 2>&1' > /dev/null 2>&1
 status="$(echo $?)"

I can't understand what these two lines are doing?
When I execute the first line nothing is output. I get that the command is being directed somewhere that is not shown. And when I execute the echo $? line I get a number. Not sure what this number means though? Is this command checking if I can successfully login to this server or not?

Also, is there a way to concatenate the two lines into one command line instruction to return the value?

Thank you.
Last edited by jim mcnamara; 10-09-2019 at 07:37 PM..
 

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LEARN ABOUT SUNOS

show-component-status

asadmin-show-component-status(1AS)				   User Commands				asadmin-show-component-status(1AS)

NAME

       asadmin-show-component-status, show-component-status - displays the status of the deployed component

SYNOPSIS

       show-component-status  --user  admin_user  [--password admin_password] [--host localhost] [--port 4848] [--secure|-s] [--passwordfile file-
       name] [--terse=false] [--echo=false] [--interactive] component_name

       show-component-status gets the status of the deployed component. The status is a string representation returned by the server. The possible
       status strings include: enabled or disabled. This command is supported in remote mode only.

OPTIONS

       --user		       authorized domain application server administrative username.

       --password	       password to administer the domain application server.

       --host		       machine name where the domain application server is running.

       --port		       port number of the domain application server listening for administration requests.

       --secure 	       if true, uses SSL/TLS to communicate with the domain application server.

       --passwordfile	       file containing the domain application server password.

       --terse		       indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well-
			       formatted data for consumption by a script.

       --echo		       setting to true will echo the command line statement on the standard output.

       --interactive	       prompts you for the required options that are not already specified.

OPERANDS

       component_name	       name of the component to be listed.

       Example 1: Using show-component-status

       asadmin> show-component-status sampleApplication
       Status of sampleApplication is enabled

       Where: the status of the sampleApplication application is shown.

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

       asadmin-list-components(1AS), asadmin-list-sub-components(1AS)

J2EE 1.4 SDK							    March 2004					asadmin-show-component-status(1AS)
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