Perl – Sending Email with NET::SMTP using username and password First of all double check that Authen::SASL is an installed module.. If you are not getting emails this could be why – it doesnt provide an error that is understandable! #!/usr/bin/perl ### ENSURE Authen::SASL is installed use Net::SMTP; use strict; use warnings; my $host= ‘yourhostname’; […]
Perl – Is a value decimal, real or a string? To validate if a number is a number using regex. [perl] $number = “12.3”; if ($number =~ /\D/) { print “has nondigits\n” } if ($number =~ /^\d+$/) { print “is a whole number\n” } if ($number =~ /^-?\d+$/) { print “is an integer\n” } if […]
#!/usr/local/bin/perl use strict; use warnings; print “Starting main program\n”; my @childs; for ( my $count = 1; $count <= 10; $count++) { my $pid = fork(); if ($pid) { # parent #print “pid is $pid, parent $$\n”; push(@childs, $pid); } elsif ($pid == 0) { # child sub1($count); exit 0; } else […]
Perl – Compare Array Contents when length is identical and order matches Comparing arrays side by side. Do they match or dont they? @a=(1,0,1,0,0); @b=(0,0,1,0,0); NO! @arr1=(0,1,1,1,1,1,0,1); @arr2=(0,1,1,1,1,1,0,1); use Algorithm::Diff qw( LCS_length); my $arr_count1 = @arr1; my $arr_count2 = @arr2; if($arr_count1 != $arr_count2) { print “NOMATCH\n”; ## NO MATCH } else { $count = LCS_length […]
Perl – Code Execution Time with accuracy – Time::HiRes How long does it take to execute some code? use Time::HiRes qw( time ); my $start = time(); // Code goes here sleep 10; my $end = time(); print “SPRINTF: “; printf(“%.6f\n”, $end – $start);
PERL – Bitwise OR XOR an array [perl] my @data= (“80″,”80″,”7B”,”30″,”32″,”30″,”38″,”31″,”46″,”30″,”39″); my $chk; foreach my $point(@data) { $chk = $chk^$point; ## XOR each array } $chk = hex($chk)|hex(“80”); ## OR the result value my $chk_hex=sprintf(“%x”,$chk); ## convert result to hex print “$chk = $chk_hex\n”; ## display both results side by side [/perl]
Perl DBH get last id SIMPLES with DBH Mysql my $sth = $dbh->do(“$SQL”); my $id = $dbh->{‘mysql_insertid’};
Perl Hex to Binary to Decimal Conversions Dec to Hex Use function sprintf(“%x”, DECNUMBER) or sprintf(“%X”, DECNUMBER) for hexadecimal numbers with capital letters. $decvalue = 200; $hexvalue = sprintf(“%x”, $decvalue); ## gives c8 $hexvalue = sprintf(“%X”, $decvalue); ## gives C8 Dec to Oct Use sprintf(“%o”, DECNUMBER ) $decvalue = 200; $octval = sprintf( “%o”, $decvalue […]
PERL XOR 2 HEx values Need to XOR to hex values… try this. $NEW_VAL = hex(80) ^ hex(9D);
Convert IP to HEX in Perl – one liner Strip out the IP.. $IP=”192168016012″; $IP = sprintf “%*vX”, “:”, $IP; Vector hex conversion of IP