The revitalization of the Perl Power Tools. See http://blogs.perl.org/users/brian_d_foy/2014/09/revitalizing-the-perl-power-tools.html

1. brian d foy!
Saint Perl 6
Perl Power ToolsPerl Power Tools
brian d foy!
Saint Perl 6

2. BSD!
everywhere

3. addbib apply ar arch arithmetic asa awk banner
basename bc cal cat chgrp ching chmod chown
clear cmp col colrm comm cp cut date dc deroff diff
dirname du echo ed env expand expr factor false
file find fish fold fortune from glob grep hangman
head id install join kill ln lock look ls mail make man
maze mimedecode mkdir mkfifo moo morse od par
paste patch pig ping pom ppt pr primes printenv
printf pwd rain random rev rm rmdir robots shar
sleep sort spell split strings sum tac tail tar tee test
time touch tr true tsort tty uname unexpand uniq
units unpar unshar uudecode uuencode wc what
which whois words wump xargs yes

4. http://goo.gl/upzi9j

5. s/ppt/PerlPowerTools/gi

6. #!/usr/bin/perl
!
print <>;

7. NAME
cat -- concatenate and print files
!
SYNOPSIS
cat [-benstuv] [file ...]
!
DESCRIPTION
The cat utility reads files sequentially, …
!
The options are as follows:
!
-b Number the non-blank output lines, start-
ing at 1.
!
-e Display non-printing characters (see the
-v option), and display a dollar sign
(`$') at the end of each line.

8. while (<>) {
if ($squeeze_empty) {
my $is_empty = /^$/;
if ($is_empty && $was_empty) {
next;
}
$was_empty = $is_empty;
}
!
$_ = sprintf "%6d $_", ++ $count if $number_lines ||
$number_non_blanks && /S/;
!
$_ =~ s/$/$/ if $ends;
if ($nonprinting) {
$_ =~ s/([x80-xFF])/"M-" . ("x7F" & $1)/ge;
$_ =~ s/([x00-x08x0B-x1F])/"^" . chr (0100 + ord $1)/ge;
$_ =~ s/x7F/^?/g;
}
if ($tabs) { $_ =~ s/x09/^I/g; }
!
print;
}

9. github.com/briandfoy/
PerlPowerTools

11. www.perlpowertools.com

12. Tests!