Hello PitifulProgrammer,

Here’s some feedback on your annotations:

use Data::Dump qw/ dd /;
# Creates a shortcut for calling Data::Dumper, writing dd is enough to
+ call module

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Say rather, writing dd is now enough to call Data::Dump::dd. But actually qw/ dd / is not needed here, because the Data::Dump module exports dd by default.

Main( @ARGV );
# main function, takes every file (as an argument) that is passed to @
+ARGV, might be command line or files
#that are read in

[download]

Correct, but note that in Perl, unlike in C, you don’t need a main function. (I assume that by “command line” you mean command line options.) 

exit( 0 );
#not really a clue, maybe main exits if no arguments are passed to it

[download]

No, exit terminates the script and returns its argument to the shell. By convention, an exit value of zero means “success: the script terminated without errors.”

    dd( -argv, \@ARGV );
#calls Data::Dumper via reference => possibly to print which files are
+ being passed as arguments (control function)

[download]

No, dd is a Data::Dump function; Data::Dumper is a different module.

    Sky(6);
#not really a clue => Does that mean that the sub stops after six runs

[download]

No, it’s just another call to sub Sky with the literal 6 passed as an argument instead of the variable $ar.

    my( $ra ) = @_;
    # variable for the argument(s) passed to the sub, @_ accepts every
+ argument passed to sub, i.e. the files passed to main

[download]

Yes, but note that only the first of these arguments is being copied to the scalar variable $ra. (All the arguments passed to the sub remain in the array @_.)

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re^8: search and replace strings in different files in a directory (Path::Tiny) by Athanasius
in thread search and replace strings in different files in a directory by PitifulProgrammer

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