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when I run:
perl -e '$x="abc\nxyz\n123"; $x =~ s/\n.*/... multiline.../; printf("str %s\n", $x);'
I expect result to be:
str abc... multiline...
instead I get
str abc... multiline...
123
Where am I going wrong?
/smodifier tells Perl to treat the matched string as single-line, which causes.to match newlines. Ordinarily it doesn’t, resulting in your observed behavior.