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Full Discussion: Bash: executing a command based on organized output
Top Forums Shell Programming and Scripting Bash: executing a command based on organized output Post 302511026 by Zookpr on Tuesday 5th of April 2011 02:30:37 PM
Old 04-05-2011
Bash: executing a command based on organized output
Just learning scripting. I need to remove duplicate managed printers using lpadmin. I have the following script (it's rough and probably a better way to do it) that returns the values as IP (column 1) Printer Name (column 2).
command:
lpstat -v | grep -E '192.168.*.20|192.168.*.21|192.168.*.22|192.168.*.23|192.168.*.24|192.168.*.25|192.168.*.90' | awk '{print $4,$3"/"}' | sort | awk -F "/" '{print $3,$4}'

output:
192.168.10.20 MX4100N:
192.168.24.21 AR208D:
192.168.24.22 mcx_5:
192.168.24.22 mcx_8:
192.168.24.22 M620N:
192.168.24.23 mcx_6:
192.168.24.23 M363N1:
192.168.24.24 mcx_7:
192.168.24.24 M363N2:
192.168.24.25 M363N3:
192.168.24.90 mcx_0:
192.168.24.90 mcx_1:
192.168.24.90 mcx_2:
192.168.24.90 mcx_3:
192.168.24.90 mcx_4:
What I would like to do is set up a loop that tells lpadmin to remove duplicate IP based printers based on printer name. I want to keep the highest value where they are mcx_* (managed printer) and if there is a named printer with the same IP keep the mcx printer. So from the above output I want to send the following commands to clean up the machine.
lpadmin -x M620N
lpadmin -x M363N1
lpadmin -x M363N2
lpadmin -x mcx_0
lpadmin -x mcx_1
lpadmin -x mcx_2
lpadmin -x mcx_3
lpadmin -x mcx_5
This would result in the following list of installed printers.
192.168.10.20 MX4100N:
192.168.24.21 AR208D:
192.168.24.22 mcx_8:
192.168.24.23 mcx_6:
192.168.24.24 mcx_7:
192.168.24.25 M363N3:
192.168.24.90 mcx_4:
I was thinking of assigning the output to an array and using a loop but can't wrap my brain around how to accomplish this. Does this make sense? I think I'm confusing myself trying to explain it!
 

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LEARN ABOUT DEBIAN

tgt-setup-lun

tgt-setup-lun(8)					      System Manager's Manual						  tgt-setup-lun(8)

NAME

       tgt-setup-lun - creates a target, adds a device to the target and defines initiators that can connect to the target

SYNOPSIS

       tgt-setup-lun -d device -n target_name [initiator_IP1 initiator_IP2 ...] [-h]

DESCRIPTION

       Starts tgtd if necessary and creates a target according to the supplied target_name. The format of the target name is as follows:
       iqn.2001-04.com.<hostname>-<target_name> The target name must be unique.

       The  script then adds the requested device to the target. If specific IP addresses are defined, it adds them to the list of allowed initia-
       tors for that target. If no IP addresses is defined, it defines that the target accepts any initiator.

EXAMPLES

       Create a target that uses /dev/sdb1 and allows connections only from 192.168.10.81:
       tgt-setup-lun -d /dev/sdb1 -n my_target 192.168.10.81

       Create a target that uses /dev/sdb1 and allows connections only from 192.168.10.81 and 192.168.10.82:
       tgt-setup-lun -d /dev/sdb1 -n my_target 192.168.10.81 192.168.10.82

       Create a target that uses /dev/sdb1 and allows connections from any initiator:
       tgt-setup-lun -d /dev/sdb1 -n my_target

       Display help:
       tgt-setup-lun -h

AUTHOR

       Written by Erez Zilber

REPORTING BUGS

       Report bugs to <stgt@vger.kernel.org>

COPYRIGHT

       Copyright (C) Voltaire Ltd. 2008.

																  tgt-setup-lun(8)
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