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[经验分享] perl模块的安装,查询

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发表于 2018-9-1 08:33:16 | 显示全部楼层 |阅读模式
#!/usr/bin/env perl  # pminst -- find modules whose names match this pattern
  # tchrist@perl.com
  BEGIN { $^W = 1 }
  use Getopt::Std qw(getopts);
  use File::Find;
  getopts('ls') || die "bad usage";
  if (@ARGV == 0) {
  @ARGV = ('.');
  }
  die "usage: $0 [-l] [-s] pattern\n" unless @ARGV == 1;
  $pattern = shift();
  $pattern =~ s,::,/,g;
  no lib '.';
  use vars qw($opt_l $opt_s);
  for $startdir (@INC) {
  find(\&wanted, $startdir);
  }
  sub wanted {
  if (-d && /^[a-z]/) {
  # this is so we don't go down site_perl etc too early
  $File::Find::prune = 1;
  return;
  }
  return unless /\.pm$/;
  local $_ = $File::Find::name;
  ($tmpname = $_) =~ s{^\Q$startdir/}{};
  return unless $tmpname =~ /$pattern/o;
  if ($opt_l) {
  s{^(\Q$startdir\E)/}{$1 } if $opt_s;
  }
  else {
  s{^\Q$startdir/}{};
  s/\.pm$//;
  s{/}{::}g;
  print "$startdir " if $opt_s;
  }
  print $_, "\n";
  }
  __END__
  =head1 NAME
  pminst - find modules whose names match this pattern
  =head1 SYNOPSIS
  pminst [B] [B] [I]
  =head1 DESCRIPTION
  Without argumnets, show the names of all installed modules.    Given a
  pattern, show all module names that match it.    The B flag will show
  the full pathname.    The B flag will separate the base directory from
  @INC from the module portion itself.
  =head1 EXAMPLES
  $ pminst
  (lists all installed modules)
  $ pminst Carp
  CGI::Carp
  Carp
  $ pminst ^IO::
  IO::Socket::INET
  IO::Socket::UNIX
  IO::Select
  IO::Socket
  IO::Poll
  IO::Handle
  IO::Pipe
  IO::Seekable
  IO::Dir
  IO::File
  $ pminst '(?i)io'
  IO::Socket::INET
  IO::Socket::UNIX
  IO::Select
  IO::Socket
  IO::Poll
  IO::Handle
  IO::Pipe
  IO::Seekable
  IO::Dir
  IO::File
  IO
  Pod::Functions
  The -s flag provides output with the directory separated
  by a space:
  $ pminst -s | sort +1
  (lists all modules, sorted by name, but with where they
  came from)
  $ oldperl -S pminst -s IO
  /usr/lib/perl5/i386-linux/5.00404 IO::File
  /usr/lib/perl5/i386-linux/5.00404 IO::Handle
  /usr/lib/perl5/i386-linux/5.00404 IO::Pipe
  /usr/lib/perl5/i386-linux/5.00404 IO::Seekable
  /usr/lib/perl5/i386-linux/5.00404 IO::Select
  /usr/lib/perl5/i386-linux/5.00404 IO::Socket
  /usr/lib/perl5/i386-linux/5.00404 IO
  /usr/lib/perl5/site_perl LWP::IO
  /usr/lib/perl5/site_perl LWP::TkIO
  /usr/lib/perl5/site_perl Tk::HTML::IO
  /usr/lib/perl5/site_perl Tk::IO
  /usr/lib/perl5/site_perl IO::Stringy
  /usr/lib/perl5/site_perl IO::Wrap
  /usr/lib/perl5/site_perl IO::ScalarArray
  /usr/lib/perl5/site_perl IO::Scalar
  /usr/lib/perl5/site_perl IO::Lines
  /usr/lib/perl5/site_perl IO::WrapTie
  /usr/lib/perl5/site_perl IO::AtomicFile
  The -l flag gives full paths:
  $ filsperl -S pminst -l Thread
  /usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread/Queue.pm
  /usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread/Semaphore.pm
  /usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread/Signal.pm
  /usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread/Specific.pm
  /usr/local/filsperl/lib/5.00554/i686-linux-thread/Thread.pm
  =head1 AUTHOR and COPYRIGHT
  Copyright (c) 1999 Tom Christiansen
  This is free software.    You may modify it and distribute it
  under Perl's Artistic Licence.    Modified versions must be
  clearly indicated.


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