Print periodic progress messages on the same line

Question

I have below command

command | sed 's/^/Progress: /g'

Output:

Progress: 1%
Progress: 2%
Progress: 3%
...
...
Progress: 100%

How can I limit that output to single line such that:

Progress: n%

Output should display only one line Progress: n% and n keeps progressively changes

With an `echo` you can use the `-e` flag .. `echo -e "\rProgress: $percent%"` — Zak, Feb 25 '22 at 18:15
are you saying that you want *every* `Progress: ...` line to display on the terminal, but each successive line overwrites the previous line, so it looks like you have a single `Progress:` followed by a dynamically changing percentage? — markp-fuso, Feb 25 '22 at 18:17
You can use the `tr` command to translate newline to carriage return. — Barmar, Feb 25 '22 at 18:17
has to process the output of command to extract percentage and then display progressively — Haru Suzuki, Feb 25 '22 at 18:26
Tried tr with while read but it will replace last 100% line with : 99%. But it should be Progress: 100% — Haru Suzuki, Feb 25 '22 at 18:34
@HaruSuzuki Try: `command | sed -ue 's/.*/Progress: &%\r/' | stdbuf -o0 tr -d \\n` — F. Hauri - Give Up GitHub, Feb 25 '22 at 18:37
why it was closed. I dont want to CREATE progress bar. my progress is comming from output of command just had to display it progressively — Haru Suzuki, Feb 25 '22 at 18:45

ufopilot · Accepted Answer · 2022-02-25T19:04:57.643

3

command|awk '{ printf "Progress: %s%%  \r", $1}'

This one is with ProgressBar

command|awk '{printf "\rProgress: " $1 "%% ["; for(c=0;c<$1;c++) printf "#"; printf "]" }'

Progress: 60% [############################################################]

edited Feb 25 '22 at 19:04

answered Feb 25 '22 at 18:27

ufopilot

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awk is not tagges. command | sed | display. thats the way i wanted – Haru Suzuki Feb 25 '22 at 18:52

score 1 · Answer 2 · answered Feb 25 '22 at 18:19

1

Use \r to go to the beginning of the line without going to the next line.

command | while read -r percent; do
    printf 'Progress: %d%%  \r' "$percent"
done
printf '\n'

answered Feb 25 '22 at 18:19

Barmar

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I don't understand that, I think you have a typo. – Barmar Feb 25 '22 at 18:49

Print periodic progress messages on the same line

2 Answers2