Get detailed Perl version configuration information
Most Perl programmers know they can find out the current Perl version by typing “perl -v” as the command line:
perl -v
This is perl 5, version 16, subversion 3 (v5.16.3) built for x86_64-linux
Copyright 1987-2012, Larry Wall
Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.
Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl". If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.
To get detailed version information type “perl -V” (capital V) at the command line:
perl -V
Summary of my perl5 (revision 5 version 16 subversion 3) configuration:
Platform:
osname=linux, osvers=3.8.4-102.fc17.x86_64, archname=x86_64-linux
uname='linux localhost.localdomain 3.8.4-102.fc17.x86_64 #1 smp sun mar 24 13:09:09 utc 2013 x86_64 x86_64 x86_64 gnulinux '
config_args='-de -Dprefix=/home/sillymoose/perl5/perlbrew/perls/perl-5.16.3 -Aeval:scriptdir=/home/sillymoose/perl5/perlbrew/perls/perl-5.16.3/bin'
hint=recommended, useposix=true, d_sigaction=define
useithreads=undef, usemultiplicity=undef
useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2',
cppflags='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
ccversion='', gccversion='4.7.2 20120921 (Red Hat 4.7.2-2)', gccosandvers=''
intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
libpth=/usr/local/lib /lib/../lib64 /usr/lib/../lib64 /lib /usr/lib /lib64 /usr/lib64 /usr/local/lib64
libs=-lnsl -ldl -lm -lcrypt -lutil -lc
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
libc=, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.15'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib -fstack-protector'
Characteristics of this binary (from libperl):
Compile-time options: HAS_TIMES PERLIO_LAYERS PERL_DONT_CREATE_GVSV
PERL_MALLOC_WRAP PERL_PRESERVE_IVUV USE_64_BIT_ALL
USE_64_BIT_INT USE_LARGE_FILES USE_LOCALE
USE_LOCALE_COLLATE USE_LOCALE_CTYPE
USE_LOCALE_NUMERIC USE_PERLIO USE_PERL_ATOF
Built under linux
Compiled at Apr 15 2013 14:54:57
%ENV:
PERLBREW_BASHRC_VERSION="0.62"
PERLBREW_HOME="/home/sillymoose/.perlbrew"
PERLBREW_MANPATH="/home/sillymoose/perl5/perlbrew/perls/perl-5.16.3/man"
PERLBREW_PATH="/home/sillymoose/perl5/perlbrew/bin:/home/sillymoose/perl5/perlbrew/perls/perl-5.16.3/bin"
PERLBREW_PERL="perl-5.16.3"
PERLBREW_ROOT="/home/sillymoose/perl5/perlbrew"
PERLBREW_VERSION="0.62"
@INC:
/home/sillymoose/perl5/perlbrew/perls/perl-5.16.3/lib/site_perl/5.16.3/x86_64-linux
/home/sillymoose/perl5/perlbrew/perls/perl-5.16.3/lib/site_perl/5.16.3
/home/sillymoose/perl5/perlbrew/perls/perl-5.16.3/lib/5.16.3/x86_64-linux
/home/sillymoose/perl5/perlbrew/perls/perl-5.16.3/lib/5.16.3
This prints detailed information on the installed Perl’s configuration including: the options that Perl was compiled with, whether iThreads are enabled or not and a host of directory information.
This article was originally posted on PerlTricks.com.
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David Farrell
David is the editor of Perl.com. An organizer of the New York Perl Meetup, he works for ZipRecruiter as a software developer, and sometimes tweets about Perl and Open Source.
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