01-10-2008
[Beginner] Handle Files
Hi,
How can I check if a text files is empty?
(With Bash Shell)
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LEARN ABOUT DEBIAN
jifty::manual::style
Jifty::Manual::Style(3pm) User Contributed Perl Documentation Jifty::Manual::Style(3pm)
NAME
Jifty::Manual::Style - Jifty coding style guide
Default style
When in doubt, default to whatever Damian Conway's Perl Best Practices says.
Private documentation
When documenting a private method, or providing documentation which is not useful to the user of the module (and is presumably useful to
the developer), wrap it in =begin/end private. This way it does not show up in perldoc where a user would see it and yet is still
available and well formatted (that is, not just a lump comment) when looking at the code.
=begin private
=head2 import_extra
Called by L<Test::More>'s C<import> code when L<Jifty::Test> is first
C<use>'d, it calls L</setup>, and asks Test::More to export its
symbols to the namespace that C<use>'d this one.
=end private
sub import_extra {
...
}
Test temp files
Files created by tests should be declared as such using Jifty::Test->test_file() so they are cleaned up on a successful test run.
Use Shell::Command
Shell::Command has a number of functions which work like common shell file commands such as "touch", "cp" and "mv". They are battle tested
and cross-platform. Use them instead of coding your own.
For example, instead of this:
open my $file, ">foo";
close $file;
Do this:
use Shell::Command;
touch $file;
Case insensitive matching
To check if a string equals another string case insensitively, do this
lc $foo eq lc $bar;
lc $foo eq 'bar';
not this:
$foo =~ /^Q$barE/i;
$foo =~ /^bar$/i;
perl v5.14.2 2010-12-08 Jifty::Manual::Style(3pm)