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PROGRESS(1) NetBSD General Commands Manual PROGRESS(1)
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by Kimmo Suominen.
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progress -- feed input to a command, displaying a progress bar
progress [-ez] [-b buffersize] [-f file] [-l length] [-p prefix] cmd
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:
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-
-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
-z Filter the input through gunzip(1). If -f is specified,
calculate the length using gzip -l.
The progress utility exits 0 on success, and >0 if an error occurs.
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
progress -f file.tar.gz tar zxf -
could be used.
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.
progress first appeared in NetBSD 1.6.1. The dynamic progress bar dis-
play code is part of ftp(1).
progress was written by John Hawkinson <jhawk@NetBSD.org>. ftp(1)'s
dynamic progress bar was written by Luke Mewburn.
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.
NetBSD 10.99 June 6, 2007 NetBSD 10.99