Re^2: Convert Time to Epoch Using External Variable

Note the use of -- to tell perl (the executable) to pass the remaining arguments to the Perl script (in this case, given by -e). See Command Switches.

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Re^3: Convert Time to Epoch Using External Variable by johngg (Canon) on Feb 04, 2015 at 22:49 UTC
I think the `--` flag to stop option parsing is only necessary if something you want treated as an argument actually looks like it might be an option, e.g. `-999` or `--foo`. In the code given it is not required but it does no harm and using it is not a bad habit to get into. `$ perl -MPOSIX -le 'print mktime @ARGV' -- 56 34 12 4 1 115 1423053296 $ perl -MPOSIX -le 'print mktime @ARGV' 56 34 12 4 1 115 1423053296 $` [download] I hope this is of interest. Cheers, JohnGG	[reply] [d/l] [select]

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Re^3: Convert Time to Epoch Using External Variable
by johngg (Canon) on Feb 04, 2015 at 22:49 UTC

I think the -- flag to stop option parsing is only necessary if something you want treated as an argument actually looks like it might be an option, e.g. -999 or --foo. In the code given it is not required but it does no harm and using it is not a bad habit to get into.

$ perl -MPOSIX -le 'print mktime @ARGV' -- 56 34 12 4 1 115
1423053296
$ perl -MPOSIX -le 'print mktime @ARGV' 56 34 12 4 1 115
1423053296
$
[download]

I hope this is of interest.

Cheers,

JohnGG

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