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/bin/tar -xvzf Math-Pari-2.010702.tar.tar 2>&1:
Math-Pari-2.010702/
Math-Pari-2.010702/Changes
Math-Pari-2.010702/func_codes.h
Math-Pari-2.010702/INSTALL
Math-Pari-2.010702/libPARI/
Math-Pari-2.010702/libPARI/codes_2014
Math-Pari-2.010702/libPARI/expected_codes
Math-Pari-2.010702/libPARI/extract_codes.pl
Math-Pari-2.010702/libPARI/gphelp
Math-Pari-2.010702/libPARI/Makefile.PL
Math-Pari-2.010702/Makefile.PL
Math-Pari-2.010702/MANIFEST
Math-Pari-2.010702/META.yml
Math-Pari-2.010702/Pari.pm
Math-Pari-2.010702/Pari.xs
Math-Pari-2.010702/PariInit.pm
Math-Pari-2.010702/patches/
Math-Pari-2.010702/patches/diff_2.1.2_gccism
Math-Pari-2.010702/patches/diff_2.1.3_interface
Math-Pari-2.010702/patches/diff_2.1.4_interface
Math-Pari-2.010702/patches/diff_2.1.6_no-common
Math-Pari-2.010702/patches/diff_2.1.6_ploth64
Math-Pari-2.010702/patches/diff_2.1.7_-O
Math-Pari-2.010702/patches/diff_2.1.7_restart
Math-Pari-2.010702/patches/diff_2.2.2_interface
Math-Pari-2.010702/patches/diff_pari-2.1.3-ix86-divl
Math-Pari-2.010702/patches/patch-pari-unnormalized-float
Math-Pari-2.010702/README
Math-Pari-2.010702/t/
Math-Pari-2.010702/t/00_Pari.t
Math-Pari-2.010702/t/PlotRect.t
Math-Pari-2.010702/t/zz_leak.t
Math-Pari-2.010702/test_eng/
Math-Pari-2.010702/test_eng/ex.t
Math-Pari-2.010702/test_eng/Testout.pm
Math-Pari-2.010702/TODO
Math-Pari-2.010702/typemap
Math-Pari-2.010702/utils/
Math-Pari-2.010702/utils/chap3_to_pod
Math-Pari-2.010702/utils/comp_funcs.pl
Math-Pari-2.010702/utils/foncpari.pl
Math-Pari-2.010702/utils/inc.h
Math-Pari-2.010702/utils/Math/
Math-Pari-2.010702/utils/Math/PariBuild.pm
/bin/tar: Skipping to next header

gzip: stdin: invalid compressed data--crc error

gzip: stdin: invalid compressed data--length error
/bin/tar: Child returned status 1
/bin/tar: Error exit delayed from previous errors

if everything looks okay, you should see the unpacked directory: start