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Full Discussion: Help needed with Sort and uniq data
Top Forums Shell Programming and Scripting Help needed with Sort and uniq data Post 302344842 by jp2542a on Monday 17th of August 2009 08:25:58 PM
Old 08-17-2009
Here's an awk program that will retain the output order. One thing.. the java entry is not printed because it doesn't appear in both groups.


Code:
BEGIN {
# init the first group's array index
AINDEX=1
# init the second group's index
BINDEX=1
# init the group flag
FIRSTGROUP=1
}


#function to find match in a group array
# returns index if match, else 0
function check_match()
{
        for (i = 1; i <= AINDEX; i++)
                if (a[i] == $0)
                        return(i)
        return(0)
}

# Store the first a group record
(FNR == 1) {
        a[AINDEX] = $0
# Set that it is printable
        p[AINDEX] = 0
# get next record
        next
}

# Do this clause if we are processing first group
(FIRSTGROUP == 1) {
# Check if we have complete first group
        if ($0 == "" ) {
# end of first group
                FIRSTGROUP = 0
# get the second group header
                getline
# initialize the second group by storing the header
                b[1]=$0
# go to next line
                next
        }

# add it to the first group's array
        a[++AINDEX] = $0
}

#Do this clause if we are processing second group
(FIRSTGROUP == 0) {
# Check to see if this in first group
        if(( j = check_match()) != 0) {
# yes - so add it to b array
                b[++BINDEX] = $0
# create index in p to indicate it's a match in a
                p[j] = 0
# next record
        }
}

# display results
END {
        for( i = 1; i <= AINDEX; i++)
# print first group entry only if it matched b group entry
                if( i in p)
                        print a[i]
        print " "
        for (i = 1; i <= BINDEX; i++)
                print b[i]
}

 

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LEARN ABOUT HPUX

lvmpvg

lvmpvg(4)						     Kernel Interfaces Manual							 lvmpvg(4)

NAME

       lvmpvg - LVM physical volume group information file

SYNOPSIS

DESCRIPTION

       is  an  ASCII file that stores the volume-group information for all of the physical volume groups in the system.  The information is stored
       in a hierarchical format.

       First, it starts with a volume group under which multiple physical volume groups can exist.  Under each physical volume group,  a  list	of
       physical  volumes  can be specified.  There must be at least one physical volume group in each volume group that appears in this file.  The
       physical-volume-group name must be unique within the corresponding volume group, although it is permissible to use a common physical volume
       group name across different volume groups.  There can be as many volume groups in this file as there are in the system.

       Instead of using the and commands, the administrator can edit this file to create and extend physical volume groups.  However, care must be
       taken to ensure that all physical volumes to be included in the file have already been defined in their respective volume groups by  previ-
       ous use of or

       The  file  format  has  the  following structure.  and are keywords that introduce the names of the volume group and physical volume group,
       respectively.

	      pv_path
		 ...
	      pv_path
		 ...
	      pv_path
		 ...

       The variables are defined as follows:

	      pv_path	     The block device path name of a physical volume within the volume group.

	      pvg_name	     The name of the physical volume group.  It must be unique within the volume group.

	      vg_name	     The path name of the volume group.

EXAMPLES

       The following example shows an file containing two volume groups: the first containing two physical volume groups, each with  two  physical
       volumes defined in it; the second containing three physical volume groups, each with one physical volume defined in it.

SEE ALSO

       vgcreate(1M), vgextend(1M), vgreduce(1M), vgremove(1M), intro(7), lvm(7).

																	 lvmpvg(4)
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