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Help with script to convert rows to columns

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Top Forums Shell Programming and Scripting Help with script to convert rows to columns
# 1  
Old 05-20-2018
Help with script to convert rows to columns
Hello
I have a large database with the following structure:
Code:
Headword=Gloss1;Gloss2;Gloss3

The Glosses are separated by a
Code:
;

What I need is to reduce the multiple glosses on each row to columns
Code:
Headword=Gloss1
Headword=Gloss2
Headword=Gloss3

I had written the following script in awk to do the job
Code:
BEGIN{FS="="}
{for (i=2;i<=NF;i++) {printf $1"=";print $i}}

However it does not provide the necessary result. I wonder where the awk script has gone wrong
A small sample is appended below for testing
Code:
آءٌ=आउ;आउं
آئيني=आईनी;आईने
آئيووا=आइओवा;आईओवा
آئيويٽا=आइवेटा;आईवेटा
آئيِندَهَه=आईंद;आईंदा
آئُٽو=आउट;आउटो
آئڙي=आईड़ी;आउड़े
آئڙيو=आईड़ियो;आउड़ियो
آئڙڻ=आउड़ण;आउड़णु
آب=आब;आबि;आबु
آباد=आबा;आबाद;आबादु
آبادءَ=आबादअ;आबादीअ;आबादुअ
آبادُ=आबाद;आबादु
آبادِي=आबादिय;आबादी
آبدارُ=आबदार;आबदारु
آبروءَ=आबरूअ
آبشار=आबशार;आबशारु
آبشارُ=आबशार;आबशारु
آبنوُسُ=आबनूस;आबनूसु
آبوهڻ=आबोहण;आबोहणु
آبي=आबी;आबे
آبِ=आबि;आबे
آبڪلاني=आबकलानी;आबेकलानी
آت=आत;आतु
آتاري=आतारी;आतारे
آتارڻ=आतारण;आतारणु
آتارڻُ=आतारण;आतारणु
آتسباجي=आतसबाजी;आतस्बाजी
آتشبازيءَ=आतशबाज़ीअ;आतिशबाज़ीअ
آتشِ=आतशि;आतिशि
آتم=आत्म
آتي=आत;आती;आते
آتين=आतियुनि;आतीं
آتَڻُ=आतण;आतणु
آتُ=आत;आतु
آتڻ=आतण;आतणु
آتڻُ=आतण;आतणु
آثار=आसार;आसारु
آثارُ=आसार;आसारु
آج=आज;आजु
آجارُ=आजार;आजारु
آجي=आज;आजी;आजे

Please note that it is possible that headword in the database may map to a single gloss as in
Code:
آتم=आत्म

Many thanks in advance
# 2  
Old 05-20-2018
You weren't too far off. Try FS="[;=]".
This User Gave Thanks to RudiC For This Post:
gimley
# 3  
Old 05-20-2018
Thanks a lot. It worked
How stupid of me!!!
# 4  
Old 05-20-2018
Note that although your printf happens to work with the data you're using, it is dangerous to assume that no characters in data you're printing will ever be interpreted as format string control characters. You might want to consider one of the following as an alternative to your current code:
Code:
BEGIN {	FS = "[=;]"
}
{	for(i = 2; i <= NF; i++)
		printf("%s=%s\n", $1, $i)
}

or:
Code:
BEGIN {	FS = "[=;]"
	OFS = "="
}
{	for(i = 2; i <= NF; i++)
		print $1, $i
}

or:
Code:
BEGIN {	FS = "[=;]"
}
{	for(i = 2; i <= NF; i++)
		print $1 "=" $i
}

These 2 Users Gave Thanks to Don Cragun For This Post:
drl gimley
# 5  
Old 05-20-2018
Many thanks for the warning. The solutions you have provided are elegant and will ensure data integrity.
I tested all three and the results are excellent.
Thanks for taking time off to write these little gems.
# 6  
Old 05-31-2018
Just as a different perspective, if it is in the database, can you not use SQL for the task too?
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