man lbzip2 Command

Man page for apt-get lbzip2 Command

Man Page for lbzip2 in Linux

This tutorial shows the man page for man lbzip2 in linux.

Open terminal with 'su' access and type the command as shown below:
man lbzip2

Result of the Command Execution shown below:

LBZIP2(1)                                                                   User commands                                                                  LBZIP2(1)



NAME
       lbzip2   parallel bzip2 utility


SYNOPSIS
       lbzip2|bzip2 [ n WTHRS] [ k| c| t] [ d] [ 1 ..  9] [ f] [ v] [ S] [ FILE ... ]


       lbunzip2|bunzip2 [ n WTHRS] [ k| c| t] [ z] [ f] [ v] [ S] [ FILE ... ]


       lbzcat|bzcat [ n WTHRS] [ z] [ f] [ v] [ S] [ FILE ... ]


       lbzip2|bzip2|lbunzip2|bunzip2|lbzcat|bzcat  h


DESCRIPTION
       Compress  or  decompress  FILE  operands  or standard input to regular files or standard output, by calling Julian Seward's libbz2 from multiple threads. The
       lbzip2 utility employs multiple threads and an input bound splitter even when decompressing .bz2 files created by standard bzip2 (but see BUGS below).


INVOCATION
       The default mode of operation is compression. If the utility is invoked as lbunzip2 or bunzip2, the MO is switched to decompression. Calling the  utility  as
       lbzcat or bzcat selects decompression, with the decompressed byte stream written to standard output.


OPTIONS
        n WTHRS
              Set the number of (de)compressor threads to WTHRS.  If this option is not specified, lbzip2 either queries the system for the number of online proces Äê
              sors (if both the compilation environment and the execution environment support that), or it exits with an error.


        k,   keep
              Don't remove FILE operands after successful (de)compression. Open regular input files with more than one links.


        c,   stdout
              Write output to standard output, even when FILE operands are present. Implies  k and excludes  t.


        t,   test
              Test decompression; discard output instead of writing it to files or standard output. Implies  k and excludes  c.


        d,   decompress
              Force decompression over the mode of operation selected by the invocation name.


        z,   compress
              Force compression over the mode of operation selected by the invocation name.


        1 ..  9
              Set the compression block size to 100K .. 900K, in 100K increments.


         fast Alias for  1.


         best Alias for  9. This is the default.


        f,   force
              Open non regular input files. Open input files with more than one links, breaking links when  k isn't specified in addition. Try to remove each output
              file before opening it.


        v,   verbose
              Print a short message to standard error whenever a (de)compression operation commences.


        S     Print condition variable statistics to standard error for each completed (de)compression operation.


        s,   small,  q,   quiet,   repetitive fast,   repetitive best
              Accepted for compatibility with bzip2, otherwise ignored.


        h,   help,  L,   license,  V,   version
              Display license and version information, plus help on command line usage.


ENVIRONMENT
       LBZIP2, BZIP2, BZIP
              Before  parsing  the command line, lbzip2 inserts the contents of these variables, in the order specified, between the invocation name and the rest of
              the command line. Tokens are separated by spaces and tabs, which cannot be escaped.


       LBZIP2_TRACE_ALLOC
              If this variable is set to a non empty value, lbzip2 prints a memory  allocation  trace  to  standard  error.  The  trace  can  be  checked  with  the
              /usr/share/lbzip2/malloc_trace.pl Perl script.


OPERANDS
       FILE   Specify  files  to compress or decompress. If no FILE is given, lbzip2 works as a filter.  FILEs with .bz2, .tbz, .tbz2 and .tz2 name suffixes will be
              skipped when compressing. When decompressing, .bz2 suffixes will be removed in output filenames; .tbz, .tbz2 and .tz2 suffixes  will  be  replaced  by
              .tar;  other  filenames will be suffixed with .out. If an INT or TERM signal is delivered to lbzip2, then it removes the regular output file currently
              open before exiting.


EXIT STATUS
       0      if lbzip2 finishes successfully. This presumes that whenever it tries, lbzip2 never fails to write to standard error.


       1      if lbzip2 encounters a fatal error.


       4      if lbzip2 issues warnings without encountering a fatal error. This presumes that whenever it tries, lbzip2 never fails to write to standard error.


       SIGABRT
              (via assert()) if a runtime assertion fails (ie.  lbzip2 detects a bug in itself). Hopefully whoever  compiled  your  binary  wasn't  bold  enough  to
              

Related Topics