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Full Discussion: Cannot extract libraries using sed
Top Forums UNIX for Beginners Questions & Answers Cannot extract libraries using sed Post 303037771 by sand1234 on Tuesday 13th of August 2019 08:14:44 AM
Old 08-13-2019
Hi MadeinGermany,

Thanks for the tips.

The first solution does not work,

Code:
 ./copy_chroot_lib.sh ls echo | sed -n 's#\(/lib\).*#\1#p'
        libselinux.so.1 => /lib
        libc.so.6 => /lib
        libpcre.so.3 => /lib
        libdl.so.2 => /lib
        /lib
        libpthread.so.0 => /lib
        libc.so.6 => /lib
        /lib

While the output from the second solution does not capture only file path, and also captures (0x00...)

Code:
 ./copy_chroot_lib.sh ls echo | sed -n 's#.* => ##p'
/lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f73bfead000)
/lib/x86_64-linux-gnu/libc.so.6 (0x00007f73bfcc3000)
/lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f73bfc4f000)
/lib/x86_64-linux-gnu/libdl.so.2 (0x00007f73bfc49000)
/lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f73bfc28000)
/lib/x86_64-linux-gnu/libc.so.6 (0x00007f2cfa01c000)

I suppose we can exclude the hex value via the following, then capture lines starting with /lib.

Code:
 ./copy_chroot_lib.sh ls echo | sed -E 's#.* => ##;s/[(]0.*//'
        linux-vdso.so.1   <----- should not be included
/lib/x86_64-linux-gnu/libselinux.so.1
/lib/x86_64-linux-gnu/libc.so.6
/lib/x86_64-linux-gnu/libpcre.so.3
/lib/x86_64-linux-gnu/libdl.so.2
        /lib64/ld-linux-x86-64.so.2
/lib/x86_64-linux-gnu/libpthread.so.0
        linux-vdso.so.1
/lib/x86_64-linux-gnu/libc.so.6
        /lib64/ld-linux-x86-64.so.2

Do let me know if you have any better ideas.

Thanks!
 

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LEARN ABOUT DEBIAN

pminst

PMINST(1p)						User Contributed Perl Documentation						PMINST(1p)

NAME

       pminst - find modules whose names match this pattern

SYNOPSIS

       pminst [-s] [-l] [pattern]

DESCRIPTION

       Without argumnets, show the names of all installed modules.  Given a pattern, show all module names that match it.  The -l flag will show
       the full pathname.  The -s flag will separate the base directory from @INC from the module portion itself.

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

AUTHORS and COPYRIGHTS
       Copyright (C) 1999 Tom Christiansen.

       Copyright (C) 2006-2008 Mark Leighton Fisher.

       This is free software; you can redistribute it and/or modify it under the terms of either: (a) the GNU General Public License as published
       by the Free Software Foundation; either version 1, or (at your option) any later version, or (b) the Perl "Artistic License".  (This is the
       Perl 5 licensing scheme.)

       Please note this is a change from the original pmtools-1.00 (still available on CPAN), as pmtools-1.00 were licensed only under the Perl
       "Artistic License".

perl v5.10.1							    2010-02-22								PMINST(1p)
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