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Example of using registry from Perl
System Dependencies example from a Well House Consultants training course
More on System Dependencies [link] Source code: registry.pl Module: P214
use Getopt::Long;
use Win32::Registry; %TYPES = ( ®_SZ => "REG_SZ", ®_EXPAND_SZ => "REG_EXPAND_SZ", ®_MULTI_SZ => "REG_MULTI_SZ", ®_DWORD => "REG_DWORD", ®_BINARY => "REG_BINARY" ); $giTotal = $giTotalMatch = 0; Configure( \%Config ); if( $Config{help} ) { Syntax(); exit(); } ProcessKey($Config{root}, $Config{key} ); print STDERR "\n-------------------\n"; print STDERR "Total values checked: $giTotal\n"; print STDERR "Total values matching criteria: $giTotalMatch\n"; # Begin Callout A sub ProcessKey # End Callout A { my( $Root, $Path ) = @_; my $Key; print STDERR "Found $giTotalMatch match of ", ++$giTotal, " keys\r"; # Begin callout B if( $Root->Open( $Path, $Key ) ) # End callout B { my @KeyList; my %Values; # Begin Callout C $Key->GetKeys( \@KeyList ); # End Callout C # Begin Callout D if( $Key->GetValues( \%Values ) ) # End Callout D { # Begin Callout E foreach my $ValueName ( sort( keys( %Values ) ) ) { my $Type = $Values{$ValueName}->[1]; my $Data = $Values{$ValueName}->[2]; # Begin Callout F $ValueName = "<Default Class>" if( "" eq $ValueName ); # End Callout F foreach my $Target ( @{$Config{find}} ) { if( $Data =~ /$Target/i ) { # Begin Callout G printf( " % 6d) %s:%s = '%s'\n", ++$giTotalMatch, $Path, $ValueName, $Data ) ; # End Callout G last; } } } # End Callout E } else { print STDERR "Unable to get values for key: '$Path'\n"; } # Begin Callout H $Key->Close(); $Path .= "\\" unless ( "" eq $Path ); foreach my $SubKey ( sort ( @KeyList ) ) { ProcessKey( $Root, $Path . $SubKey ); } # End Callout H } else { print STDERR "Unable to open the key: '$Path'\n"; } } sub Configure { my( $Config, @Args ) = @_; my $Result; my %Roots = ( HKEY_LOCAL_MACHINE => $HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER => $HKEY_CURRENT_USER, HKEY_USERS => $HKEY_USERS, HKEY_CLASSES_ROOT => $HKEY_CLASSES_ROOT, HKEY_CURRENT_CONFIG => $HKEY_CURRENT_CONFIG ); Getopt::Long::Configure( "prefix_pattern=(-|\/)" ); # Begin Callout I $Config->{root} = "HKEY_LOCAL_MACHINE"; # End Callout I $Result = GetOptions( $Config, qw( root|r=s key|k=s help|h|? ) ); $Config->{help} = 1 unless( $Result ); # Begin Callout J if( exists( $Roots{uc( $Config->{root} )} ) ) { $Config->{root} = $Roots{uc( $Config->{root} )}; } else { print STDERR "Unable to access $Config->{root}.\n"; $Config->{help} = 1; } # End Callout J if( scalar @ARGV ) { @{$Config->{find}} = @ARGV; } else { $Config->{help} = 1; } } sub Syntax { # Begin Callout K my $Script = ( Win32::GetFullPathName( Win32::GetLongPathName( $0 )))[1]; # End Callout K my $Line = "-" x length( $Script ); print STDERR << "EOT"; $Script $Line Locates specified strings in the Registry. Syntax: $Script [-r <Root>] [-k KeyPath] <Find> [<Find2> [<Find3> [...]]] Root..........Registry root to look into such as HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER Default: HKEY_LOCAL_MACHINE KeyPath.......Path to a key in the specified root. Default = "\\" Find..........String to search for. Examples: perl $Script -r HKEY_LOCAL_MACHINE wmserver wmplayer EOT } Learn about this subject
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