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Full Discussion: awk to match keyword and return matches and unique fields
Top Forums Shell Programming and Scripting awk to match keyword and return matches and unique fields Post 302963376 by Don Cragun on Tuesday 29th of December 2015 06:51:52 PM
Old 12-29-2015
This seems to come close to what you said you wanted to do:
Code:
awk '
/^[[:alnum:]]/ {
	h = $0
	np = 0
}
$3 == "TSC1" {
	if(np++ == 0)
		print h
	print
}' file

but with the sample input you provided, it only prints:
Code:
name      31    Index   Chromosomal Position    Gene    Inheritance
                  82    135782221       TSC1    AD
                  81    135782026       TSC1    AD

Since TSC1 does not appear anywhere in your input file after names3, I have no idea how you got the rest of the output you said you desired.

As always, if anyone wants to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk (not nawk for this script).
This User Gave Thanks to Don Cragun For This Post:
cmccabe
 

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LEARN ABOUT HPUX

ucblinks

ucblinks(1B)					     SunOS/BSD Compatibility Package Commands					      ucblinks(1B)

NAME

       ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices

SYNOPSIS

       /usr/ucb/ucblinks [-e rulebase] [-r rootdir]

DESCRIPTION

       ucblinks  creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
       ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.

       ucblinks does not remove unneeded compatibility links; these must be removed by hand.

       ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been  created,
       since the reconfiguration may have resulted in more compatibility names being needed.

       In  releases prior to SunOS 5.4, ucblinks used a  nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses  nawk
       for the default operation, although  nawk rule-bases can still be specifed with the -e option.  The  nawk rule-base equivalent to the SunOS
       5.4 default operation can be found in /usr/ucblib/ucblinks.awk.

OPTIONS

       -e rulebase     Specify rulebase as the file containing nawk(1) pattern-action statements.

       -r rootdir      Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.

FILES

       /usr/ucblib/ucblinks.awk        sample rule-base for compatibility links

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)

SunOS 5.10							    13 Apr 1994 						      ucblinks(1B)
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