18 lines
682 B
Bash
Executable File
18 lines
682 B
Bash
Executable File
oneline() {
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# Print a command's output as a single line only.
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# Example usage: for f in 'first line' 'second line' '3rd line'; do echo "$f"; sleep 1; done | oneline
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local ws
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while IFS= read -r line; do
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if ((${#line} >= $COLUMNS)); then
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# Moving cursor back to the front of the line so user input doesn't force wrapping
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printf '\r%s\r' "${line:0:$COLUMNS}"
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else
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ws=$(($COLUMNS - ${#line}))
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# by writing each line twice, we move the cursor back to position
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# thus: LF, content, whitespace, LF, content
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printf '\r%s%*s\r%s' "$line" "$ws" " " "$line"
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fi
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done
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echo
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}
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