Adjust for a change in the article type of Classic Salesforce Knowledge Articles: This script adjusts the URLs of links within Classic Salesforce Knowledge Articles that reference other such articles to use an article type of 'Article' instead of 'Knowledge_Article_Type'

KAT2A.sh

#!/bin/bash

if [ ! -n "$1" ]
then
	multi_line_var=$( cat <<ENDxxx
Use this to adjust the URLs of links within Classic Salesforce Knowledge 
Articles to use an article type of 'Article' instead of
'Knowledge_Article_Type'

Usage: KAT2A.sh input-file.csv
  where input-file.csv is an extract of Classic Knowledge Articles from
  Salesforce in the form of "Id","Article_content"
Script will
  remove all line breaks (collapsing into a single line, outputting
    intermediate temp file chomped.csv)
  introduce line breaks ahead of head article Id (making the CSV one article 
    per line, outputting intermediate temp file one-per-line.csv)
  replace all instances of /Knowledge_Article_Type/ with /Article/, writing
    the final output to a new file entitled as Replaced-input-file.csv (the
    input file name prefixed with 'Replaced-'.)
Once the final output is validated the chomped.csv, and one-per-line.csv can 
be deleted.
ENDxxx
)
	echo "$multi_line_var"
	exit
fi

perl -pe "chomp;" "$1" > chomped.csv
perl -pe 's/"ka1/\n"ka1/sg;' chomped.csv > one-per-line.csv
perl -ne 'if($_ =~ s/\/Knowledge_Article_Type\//\/Article\//g){print;}' one-per-line.csv > "Replaced-$1"