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Full Discussion: Finding most common substrings
Top Forums Shell Programming and Scripting Finding most common substrings Post 302890679 by Don Cragun on Thursday 27th of February 2014 11:15:09 PM
Old 02-28-2014
Quote:
Originally Posted by verse123
Hi Don, I noticed that when I change the length of the substring combinations to look for above 10, I get smaller than 10 character patterns in the output. How can I prevent awk from doing this?
You said you wanted strings containing 6 characters, and the code I gave you processes substrings containing 6 characters. Please show us how you modified the code to handle strings of the length you want now.

In your sample input, the strings to be searched always contained more than 6 characters. Do you ever have an input field that is shorter then the substring length you're looking for? The code I gave you didn't check for this possibility.
 

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LEARN ABOUT SUNOS

ifparse

ifparse(1M)						  System Administration Commands					       ifparse(1M)

NAME

       ifparse - parse ifconfig command line

SYNOPSIS

       /sbin/ifparse [-fs] addr_family commands

DESCRIPTION

       Use  the  ifparse command to parse the ifconfig(1M) command line options and output substrings, one per line, as appropriate. If no options
       are specified, ifparse returns the entire ifconfig command line as a series of substrings, one per line.

OPTIONS

       The ifparse command supports the following options:

       -f	Lists only substrings of the ifconfig command line that are relevant to IP network multipath failover

       -s	 Lists only substrings of the ifconfig command line that are not relevant to IP network multipath failover

OPERANDS

       The ifparse command does not support the interface operand of the ifconfig command.

EXAMPLES

       Example 1: Parsing Command Line Options Relevant to Failover

       The following example shows the use of the ifparse command to parse the command line options relevant to IP network multipath failover:

       example# ifparse -f inet 1.2.3.4 up group one addif 1.2.3.5 -failover up
       set 1.2.3.4 up

       Example 2: Parsing Command Line Options That Are Not Relevant to Failover

       The following example shows the use of the ifparse command to parse the command line options that are not relevant to IP network  multipath
       failover:

       example# ifparse -s inet 1.2.3.4 up group one addif 1.2.3.5 -failover up
       group one
       addif 1.2.3.5 -failover up

       Example 3: Parsing the Command Line For All Options

       The following example shows the use of the ifparse command to parse the command line for all ifconfig options:

       example# ifparse inet 1.2.3.4 up group one addif 1.2.3.5 -failover up
       group one
       set 1.2.3.4 up
       addif 1.2.3.5 -failover up

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsr			   |
       +-----------------------------+-----------------------------+
       |Stability Level 	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ifconfig(1M), attributes(5)

DIAGNOSTICS

       usage: -fs <addr_family> <commands>

	 This message indicates an invalid command line.

       ifparse: Not enough space

	 This message indicates insufficient memory.

       ifparse: dhcp not supported for inet6

	 DHCP operations are not supported for the inet6 address family.

       ifparse: Operation <operation> not supported for <addr_family>

	 Most operations cannot be used with all address families. For example, the broadcast operation is not supported on the inet6 address fam-
	 ily.

       ifparse: no argument for <operation>

	 Some operations, for example broadcast, require an argument.

NOTES

       The ifparse command is classified as an obsolete interface. It will likely be removed in a future release. You should not develop  applica-
       tions that depend upon this interface.

SunOS 5.10							    9 May 2001							       ifparse(1M)
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