Mine
public text v1 · immutable[$] -> echo -e "foo\nbar\nbaz\n" > test.txt
[$] -> perl -p -i -e 's/foo.*//s' test.txt
[$] -> cat test.txt
bar
baz
[$] -> echo -e "foo\nbar\nbaz\n" > test.txt
[$] -> perl -p -i -e 's/foo.*//s' test.txt
[$] -> cat test.txt
bar
baz