24 lines
591 B
Bash
Executable File
24 lines
591 B
Bash
Executable File
#!/bin/bash
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set -eu
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args=$(getopt -o "" -l "follow,lines:" -n "$0" -- "$@")
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eval set -- "${args}"
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follow=""
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lines=""
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while true; do
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case "$1" in
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--follow) follow="--follow --retry --quiet"; shift;; # same as -F. to make it work if file doesn't exist, --quiet to not output file headers, which are no logs
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--lines) lines="$2"; shift 2;;
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--) break;;
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*) echo "Unknown option $1"; exit 1;;
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esac
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done
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# first sort the existing log lines
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tail --quiet --lines=${lines} -- "$@" | sort -k1 || true # ignore error if files are missing
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exec tail ${follow} --lines=0 "$@"
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