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43 lines
978 B
Bash
43 lines
978 B
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-03-03 17:47:02 +0000 (Tue, 03 Mar 2020)
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#
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# https://github.com/harisekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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# Quick pipe script to give progress dots on stderr while you pipe or redirect > to a file
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#
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# eg. some_big_command | progress_dots.sh > file.txt
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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LINES_PER_DOT="${LINES_PER_DOT:-100}"
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if ! [[ "$LINES_PER_DOT" =~ ^[[:digit:]]+$ ]]; then
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echo "LINES_PER_DOT must be an integer!" >&2
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exit 1
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fi
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count=0
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if [ $# -gt 0 ]; then
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"$@"
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else
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cat
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fi |
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while read -r line; do
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((count+=1))
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perl -e "if($count % $LINES_PER_DOT == 0){print STDERR '.'}"
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printf "%s\n" "$line"
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done
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echo >&2
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