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erics, January 11th, 2019 In the normal vim mode, typing gg=G will reindent the entire file. == will re-indent just the current line. http://vim.wikia.com/wiki/Fix_indentation
Categories: How-To's, Technology Auto-indent, Format, howto, Indent, perl, re-indent, Reformat, tips, vi, vim
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erics, September 18th, 2017 1 2 3 4 my $created_at = ‘2017-09-18T13:43:40Z’; my $marker = DateCalc(’today’,’30 days ago’); my $cmp = Date_Cmp($created_at,$marker); if ($cmp < 0) { print "Older than marker!\n"; } else { print "Same date or later than marker\n"; } my $created_at = ‘2017-09-18T13:43:40Z’; my $marker = DateCalc(‘today’,’30 days ago’); my $cmp = Date_Cmp($created_at,$marker); if […]
Categories: How-To's, Technology Calc, Date, Date::Manip, Delta, howto, perl, tips
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erics, September 5th, 2017 Step 1: Enable Apache status and lock it down: Make sure mod_status is being loaded: grep -Rn mod_status /etc/httpd/* 1 /etc/httpd/conf.modules.d/00-base.conf:58:LoadModule status_module modules/mod_status.so /etc/httpd/conf.modules.d/00-base.conf:58:LoadModule status_module modules/mod_status.so Add support for the call just under the first DocumentRoot statement: vim /etc/httpd/conf/httpd.conf 1 2 3 4 5 6 <Location /server-status> SetHandler server-status Require ip […]
Categories: How-To's, Technology 2.4, apache, Apache 2.4, CPAN, howto, http, httpd, https, mod_status, perl, Status, tips, YAML
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erics, October 16th, 2014 Using PERL, we can easily do a search and replace across multiple files. perl -pi -w -e ‘s/SEARCH_FOR/REPLACE_WITH/g;’ FILE_LIST The following example will replace all occurrences of “hello” with “goodbye” inside files ending with .txt: 1 perl -pi -w -e ‘s/hello/goodbye/g;’ *.txt perl -pi -w -e ‘s/hello/goodbye/g;’ *.txt To handle special characters, use the hex […]
Categories: How-To's, Technology Batch, howto, perl, Replace, search, tips
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erics, March 19th, 2014 1 use Getopt::Long qw(:config no_ignore_case); use Getopt::Long qw(:config no_ignore_case);
Categories: How-To's, Technology Arg, Args, Case, Case sensitive, cli, Getopt, Getopt::Long, howto, no_ignore_case, option, perl, Sensitive, tips
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erics, December 26th, 2013 CPAN Error: Undefined subroutine &IO::Uncompress::Base::readonly called at /usr/lib/perl5/site_perl/5.8.8/IO/Uncompress/Base.pm Looks like CentOS update installs an older version of the Scalar::Util so that Perl could not load the module. Download the Scalar::Util module and manually install it: 1 2 3 4 5 6 7 wget http://search.cpan.org/CPAN/authors/id/P/PE/PEVANS/Scalar-List-Utils-1.35.tar.gz tar xvzf Scalar-List-Utils-*.tar.gz cd Scalar-List-Utils-* perl Makefile.PL gmake gmake test gmake […]
Categories: How-To's, Technology CPAN, howto, IO, IO::Uncompress, perl, Scalar, Scalar::Utils, tips, Uncompress, Utils
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erics, April 13th, 2012 I had to patch the distribution by adding the following variable into the code: $Config::Auto::Untaint = 1; Here is the fix on AWS Linux: vim /usr/local/share/perl5/CGI/Application/Plugin/ConfigAuto.pm 141 sub cfg { 142 my $self = shift; 143 144 if (!$self->{__CFG}) { 145 require Config::Auto; 146 $Config::Auto::Untaint = 1; (ADD THIS NEW LINE HERE)
Categories: How-To's, Technology AWS, AWS Linux, CGI::Application::Plugin::ConfigAuto, Config::Auto, howto, Linux, perl, Taint, Taint Mode, tips
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erics, April 12th, 2012 For example, to see the version for DBD::mysql, do this: perl -MDBD::mysql -we ‘print $DBD::mysql::VERSION;’
Categories: How-To's, Technology DBD, DBD::mysql, howto, module, mysql, perl, tips, Version
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erics, March 21st, 2012 Perl to the Rescue! This perl script cleans just one type of infection as an example. Vary the script to search for and clean other combinations and patterns. Also, the script is deliberately written long-hand and verbose, and could be significantly more compact and efficient. It was done this way for ease of use and […]
Categories: How-To's, Technology base64, base64_decode, eval, hack, Hacked, Infected, perl, php, WordPress
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erics, December 30th, 2011 1 2 3 yum –enablerepo=epel install perl-Net-Amazon-EC2 perl-File-Slurp perl-DBI perl-DBD-MySQL perl-Net-SSLeay perl-IO-Socket-SSL perl-Time-HiRes perl-Params-Validate ca-certificates wget -O /opt/aws/bin/ec2-consistent-snapshot http://bazaar.launchpad.net/~alestic/ec2-consistent-snapshot/trunk/download/head:/ec2consistentsnapsho-20090928015038-9m9x0fc4yoy54g4j-1/ec2-consistent-snapshot chmod 0775 /opt/aws/bin/ec2-consistent-snapshot yum –enablerepo=epel install perl-Net-Amazon-EC2 perl-File-Slurp perl-DBI perl-DBD-MySQL perl-Net-SSLeay perl-IO-Socket-SSL perl-Time-HiRes perl-Params-Validate ca-certificates wget -O /opt/aws/bin/ec2-consistent-snapshot http://bazaar.launchpad.net/~alestic/ec2-consistent-snapshot/trunk/download/head:/ec2consistentsnapsho-20090928015038-9m9x0fc4yoy54g4j-1/ec2-consistent-snapshot chmod 0775 /opt/aws/bin/ec2-consistent-snapshot http://alestic.com/2009/09/ec2-consistent-snapshot http://www.thatsgeeky.com/2011/05/ec2-consistent-snapshot-on-amazons-linux-ami/ http://www.thatsgeeky.com/2011/06/rotating-ebs-snapshots-ec2-prune-snapshots/
Categories: How-To's, Technology Amazon, Amazon Linux, AWS, CentOS, chmod, consistent-snapshot, EC2, ec2-consistent-snapshot, EPEL, howto, Linux, perl, Repo, Snapshot, tips, wget, Yum
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