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PROGRESS(1)		  BSD General Commands Manual		   PROGRESS(1)

NAME
     progress — feed input to a command, displaying a progress bar

SYNOPSIS
     progress [-ez] [-b buffersize] [-f file] [-l length] [-p prefix] cmd
	      [args ...]

DESCRIPTION
     The progress utility opens a pipe to cmd and feeds an input stream into
     it, while displaying a progress bar to standard output.  If no filename
     is specified, progress reads from standard input.	Where feasible,
     progress fstat(2)s the input to determine the length, so a time estimate
     can be calculated.

     If no length is specified or determined, progress simply displays a count
     of the data and the data rate.

     The options are as follows:

     -b buffersize
		  Read in buffers of the specified size (default 64k).	An
		  optional suffix (per strsuftoll(3)) may be given.

     -e		  Display progress to standard error instead of standard out‐
		  put.

     -f file	  Read from the specified file instead of standard input.

     -l length	  Use the specified length for the time estimate, rather than
		  attempting to fstat(2) the input.  An optional suffix (per
		  strsuftoll(3)) may be given.

     -p prefix	  Print the given “prefix” text before (left of) the progress
		  bar.

     -z		  Filter the input through gunzip(1).  If -f is specified,
		  calculate the length using gzip -l.

EXIT STATUS
     progress exits 0 on success.

EXAMPLES
     The command
	   progress -zf file.tar.gz tar xf -
     will extract the file.tar.gz displaying the progress bar as time passes:

       0% |				  |	0	 0.00 KiB/s    --:-- ETA
      40% |********			  |   273 KiB  271.95 KiB/s    00:01 ETA
      81% |***********************	  |   553 KiB  274.61 KiB/s    00:00 ETA
     100% |*******************************|   680 KiB  264.59 KiB/s    00:00 ETA

     If it is preferred to monitor the progress of the decompression process
     (unlikely), then
	   progress -f file.tar.gz tar zxf -
     could be used.

     The command
	   dd if=/dev/rwd0d ibs=64k | \
	   progress -l 120g dd of=/dev/rwd1d obs=64k
     will copy the 120 GiB disk wd0 (/dev/rwd0d) to wd1 (/dev/rwd1d), display‐
     ing a progress bar during the operation.

SEE ALSO
     ftp(1), strsuftoll(3)

HISTORY
     progress first appeared in NetBSD 1.6.1.  The dynamic progress bar dis‐
     play code is part of ftp(1).

AUTHORS
     progress was written by John Hawkinson ⟨jhawk@NetBSD.org⟩.	 ftp(1)'s
     dynamic progress bar was written by Luke Mewburn.

BUGS
     Since the progress bar is displayed asynchronously, it may be difficult
     to read some error messages, both those produced by the pipeline, as well
     as those produced by progress itself.

BSD				 June 6, 2007				   BSD

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