10-17-2018
curl has a built-in progress meter that's probably better and more honest than anything hacked from the outside. I strongly suggest you use it.
A good start would be removing the useless backticks ` ` you've put around curl. This will allow you to see what curl's printing. Perhaps it can be piped into zenity somehow.
curl also has an alternate, simpler-looking progress meter if you don't like the default, which you can tell it to use with curl -'#'
Last edited by Corona688; 10-18-2018 at 12:22 PM..
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LEARN ABOUT NETBSD
progress
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 file-
name is specified, progress reads from standard input. Where feasible, progress fstat(2)s the input to determine the length, so a time esti-
mate 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 output.
-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), displaying 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 display 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