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Full Discussion: Insert text after match in XML file
Top Forums Shell Programming and Scripting Insert text after match in XML file Post 303006899 by Don Cragun on Wednesday 8th of November 2017 09:55:54 PM
Old 11-08-2017
I would be tempted to try a different approach. The following invokes awk once no matter how many XML files you have to process. This should be a lot faster than invoking ls once and invoking less, grep, and head once per file processed and cut four times per file processed and sed three times per file processed. Try:
Code:
#!/bin/bash
awk -F'[<>]' '
function copyback(filename) {
	if(filename == "")
		return
	for(i = 1; i <= lc; i++)
		print line[i] > filename
	close(filename)
	lc = 0
}
FNR == 1 {
	copyback(lastfile)
	print "Processing " FILENAME
	found = 0
	lastfile = FILENAME
}
found {	line[++lc] = $0
	next
}
$2 == "Name" && $4 == "/Name" {
	line[++lc] = $0
	n = split($3, names, /, */)
	line[++lc] = sprintf("\t<LastName>%s</Lastname>", names[1])
	if(n >= 2)
		line[++lc] = sprintf("\t<FirstName>%s</FirstName>", names[2])
	found = 1
}
END {	copyback(lastfile)
}' *.xml

If someone else wants to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk or nawk.
Last edited by Don Cragun; 11-08-2017 at 11:02 PM.. Reason: Correct indentation in awk script.
 

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LEARN ABOUT OPENSOLARIS

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 5.11							    13 Apr 1994 						      ucblinks(1B)
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