pipemeter - measure speed of data going through a pipe/redirection

       Written by Clint Byrum <cbyrum@spamaps.org>

       Copyright © 2006 Clint Byrum
       This  is  free  software;  see  the  source for copying conditions.  There is NO  warranty;  not even for
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

                                                                                                    PIPEMETER(1)

pipemeter simply takes input on stdin, and redirects it to its stdout. While doing this, it measures  how
       fast  the  data is moving through it.  Alternatively, with the -s parameter, shows a progress bar as data
       is piped through it.  All output generated by pipemeter is written to stderr.

       While running in progress mode, pipemeter will display the ETA (Estimated Time of Arrival). When exiting,
       it will change this field to show the elapsed time for the program. In rate-only mode, it will just  show
       elapsed time.

       Note that as of pipemeter 0.8, Adaptive Block Sizing is used to speed up the movement of data through it.
       It will increase, or sometimes decrease, the block size in an attempt to find the one that works best for
       the  combination  of  input  and output. This also helps it deal better with, for instance, a temporarily
       busy disk. You can use -a to turn it off.

       -s,--sizesize
              Sets the size of the input, and turns on the progress bar.

       -b,--blocksizeblock_size
              Sets the size of blocks, in bytes, to move through the program at once. Default is 8192. A  suffix
              of     K     means     Kilobytes(x*1024)     means    Megabytes(x*1024*1024),    and    G    means
              Gigabytes(x*1024*1024*1024).

       -m,--maxblockmax_block_size
              Sets the maximum block size for adaptive block sizing. Default is 8M.

       -i,--intervalinterval
              Specify the number of seconds between updates on the speed and/or progress bar.

       -f,--fileinfile
              infile specifies a file to be read instead of stdin.  It  will  also  automatically  turn  on  the
              progress  bar  if  a size can be determined. Multiple occurrences of -f will read the files in the
              order they are specified on the cmdline, and sizes will be added to each  other.  Note  that  this
              option  remains  for  backward  compatibility,  it  is far simpler to just specify the input files
              without options.

       -F,--listlistfile
              specifies a file to read in the list of input  files  from.  Each  line  is  a  path  to  a  file,
              terminated by a newline.

       -r,--report
              report  only  mode.  This  causes the program to suppress outputting/calculating while running. It
              will print out only one line.

       -a,--autooff
              turn off adaptive block sizing. Sometimes ABS can use insane amounts of RAM, such as when  reading
              and writing to RAM disks.

       -V,--version
              Prints a version number and exits.

       -l,--log
              Turns on logging mode. Uses only newlines, no returns.

       pipemeter - measure speed of data going through a pipe/redirection

pipemeter  [  -alV  ]  [ -s size ] [ -b block_size ] [ -m max_block_size ] [ -i interval ] [ -f infile -f
       infile2 ] infile infile2 ...