Why does my perl one-liner ignore the first line of input?

By the time you undef $ the first line has already been read. Use the -0 option to set $ before anything has been read.

By the time you undef $/, the first line has already been read. Use the -0 option to set $/ before anything has been read. Perl -p0i.

Bak -e 's/^. *? //s.

4 Supposing that the -0 switch wasn't there you could do -e 'BEGIN { undef $/ } s/^. *? //s'.

– hobbs Nov 3 '09 at 11:29 1 Yes, a BEGIN can also do the work early enough. – Chris Johnsen Nov 3 '09 at 11:44.

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