I am using this command to delete multiple occurrences of a line in my script and it just works fine when I run it on the command prompt. However when I use this line in my perl script it throws an error SED: syntax error at script.pl line 19, near ";$'". Below is the line in my script. I tried escaping $ but that dint help 
sed '/<\/data_item>/{N;/<\/data_item>$/{N;$'!'{s/\n//;D}}}' $WX;

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In reply to sed in perl: syntax error at script.pl line 19, near “;$'” by rancho_trojan

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