怎样才能只显示 wget 进度条？

例如:

wget http://somesite.com/TheFile.jpeg


downloading: TheFile.tar.gz ...
--09:30:42--  http://somesite.com/TheFile.jpeg
=> `/home/me/Downloads/TheFile.jpeg'
Resolving somesite.co... xxx.xxx.xxx.xxx.
Connecting to somesite.co|xxx.xxx.xxx.xxx|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1,614,820 (1.5M) [image/jpeg]


25% [======>                              ] 614,424      173.62K/s    ETA 00:14


How can I get it to look like the following?


downloading: TheFile.jpeg ...
25% [======>                              ] 614,424      173.62K/s    ETA 00:14

我知道 Curl 可以做到，但是，我需要 Wget 来做这个工作。

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小开
最佳答案

You can use the following filter:

progressfilt ()
{
local flag=false c count cr=$'\r' nl=$'\n'
while IFS='' read -d '' -rn 1 c
do
if $flag
then
printf '%s' "$c"
else
if [[ $c != $cr && $c != $nl ]]
then
count=0
else
((count++))
if ((count > 1))
then
flag=true
fi
fi
fi
done
}

Usage:

$ wget --progress=bar:force http://somesite.com/TheFile.jpeg 2>&1 | progressfilt
100%[======================================>] 15,790      48.8K/s   in 0.3s


2011-01-13 22:09:59 (48.8 KB/s) - 'TheFile.jpeg' saved [15790/15790]

This function depends on a sequence of 0x0d0x0a0x0d0x0a0x0d being sent right before the progress bar is started. This behavior may be implementation dependent.

小开

This is another example:

download() {
local url=$1
echo -n "    "
wget --progress=dot $url 2>&1 | grep --line-buffered "%" | sed -u -e "s,\.,,g" | awk '{printf("\b\b\b\b%4s", $2)}'
echo -ne "\b\b\b\b"
echo " DONE"
}
小开

You can use standard options:

wget --progress=bar http://somesite.com/TheFile.jpeg
小开

You can use the follow option of tail:

wget somesite.com/TheFile.jpeg --progress=bar:force 2>&1 | tail -f -n +6

The +6 is to delete the first 6 lines. It may be different on your version of wget or your language.

You need to use --progress=bar:force otherwise wget switches to the dot type.

The downside is that the refreshing is less frequent than with wget (looks like every 2 seconds). The --sleep-interval option of tail seems to be meant just for that, but it didn't change anything for me.

小开

Use:

wget http://somesite.com/TheFile.jpeg -q --show-progress

  • -q: Turn off wget's output

  • --show-progress: Force wget to display the progress bar no matter what its verbosity level is set to

小开

The option --show-progress, as pointed out by others, is the best option, but it is available only since GNU wget 1.16, see Noteworthy changes in wget 1.16.

To be safe, we can first check if --show-progress is supported:

# set progress option accordingly
wget --help | grep -q '\--show-progress' && \
_PROGRESS_OPT="-q --show-progress" || _PROGRESS_OPT=""


wget $_PROGRESS_OPT ...

Maybe it's time to consider just using curl.

小开

This is not literally an answer but this snippet might also be helpful to some coming here for e.g. "zenity wget GUI":

LANG=C wget -O /dev/null --progress=bar:force:noscroll --limit-rate 5k http://nightly.altlinux.org/sisyphus/ChangeLog 2>&1 | stdbuf -i0 -o0 -e0 tr '>' '\n' | stdbuf -i0 -o0 -e0 sed -rn 's/^.*\<([0-9]+)%\[.*$/\1/p' | zenity --progress --auto-close

What was crucial for me is stdbuf(1).

小开

Here is a solution that will show you a dot for each file (or line, for that matter). It is particularly useful if you are downloading with --recursive. This won't catch errors and may be slightly off if there are extra lines, but for general progress on a lot of files it is helpful:

wget -r -nv https://example.com/files/ | \
awk -v "ORS=" '{ print "."; fflush(); } END { print "\n" }'
小开

Run using these flags:

wget -q --show-progress --progress=bar:force 2>&1

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