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sed -i.bak 's/coy/reindeer/' hey.txt cmp -s hey.txt hey.pristine.txt && echo "sed did not work, your files are identical." |
And if we want to be more fancy to make the cmp line more generic,
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sed -i.bak 's/coy/reindeer/' hey.txt
cmp -s $_ hey.pristine.txt && echo "sed did not work, your files are identical." |
Insert Multiple Lines from File with Match
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