You can also use diagnostics; to help debug errors (emphasis is mine).
(F) Probably means you had a syntax error. Common reasons include
+:
A keyword is misspelled.
A semicolon is missing.
A comma is missing.
An opening or closing parenthesis is missing.
An opening or closing brace is missing.
A closing quote is missing.
Often there will be another error message associated with the synt
+ax
error giving more information. (Sometimes it helps to turn on -w.
+)
The error message itself often tells you where it was in the line
+when
it decided to give up. Sometimes the actual error is several toke
+ns
before this, because Perl is good at understanding random input.
Occasionally the line number may be misleading, and once in a blue
+ moon
the only way to figure out what's triggering the error is to call
perl -c repeatedly, chopping away half the program each time to se
+e
if the error went away. Sort of the cybernetic version of S<20
questions>.
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