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Re: Filtering out carriage returns from terminal progress indicators
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From: |
Assaf Gordon |
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Subject: |
Re: Filtering out carriage returns from terminal progress indicators |
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Date: |
Sun, 17 Feb 2019 09:18:24 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 |
Hello,
On 2019-02-17 3:15 a.m., R. Diez wrote:
[...]
"The log file should optimise away the carriage return trick often used
to update a progress indicator in place on the current console line."
[...]
It would not be a perfect filtering, but it could be enough. This is a
problematic case:
echo $'123\rab\n'
The result should be:
ab3
But the filtering I am proposing would output:
ab
Something like this should do the trick:
$ printf '123\r456\r789\rab\n000\r111\r222\r333\rcd\n' \
| LC_ALL=C sed 's/[^\r]*\r//g'
ab
cd
regards,
- assaf