36 lines
778 B
Bash
36 lines
778 B
Bash
#!/bin/bash
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# Real devs look through the middle of their logs
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filename=""
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lines=10
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midline=0
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while getopts ":n:" opt; do
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case $opt in
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n)
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re='^[0-9]+$'
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if ! [[ $OPTARG =~ $re ]] ; then
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echo "Option -n requires a numeric argument"
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exit 1
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fi
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lines=$(($OPTARG - 1))
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#echo "Lines = $lines"
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;;
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:)
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echo "Option -$OPTARG requires an argument."
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exit 1
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;;
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esac
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done
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for i in $@; do :; done
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filename=$i
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#echo "Filename is $filename"
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midline="$(wc -l $filename | awk '{print $1}')"
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#echo "Midline = $midline"
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midline=$(($midline / 2))
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#echo "Midline = $midline"
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endline=$(($midline + $lines))
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sed -n ''$midline','$endline'p' $filename
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exit 1
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