busybox/scripts/find_stray_empty_lines
Javier Viguera a3f71001c3 find_stray_empty_lines: fix tail "invalid context" error
"tail -1" works only with one input file. Using it with multiple input
files throws following error on Ubuntu systems:

tail: option used in invalid context

Adding "-n" makes it work on all cases.

Signed-off-by: Javier Viguera <javier.viguera@digi.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-07-28 21:01:55 +02:00

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#!/bin/sh
grep -n -B1 -r $'^\t*}$' . | grep -A1 '.[ch]-[0-9]*-$'
grep -n -A1 -r $'^\t*{$' . | grep -B1 '.[ch]-[0-9]*-$'
# or (less surefire ones):
grep -n -B1 -r $'^\t*}' . | grep -A1 '.[ch]-[0-9]*-$'
grep -n -A1 -r $'^\t*{' . | grep -B1 '.[ch]-[0-9]*-$'
# find trailing empty lines
find -type f | xargs tail -n1 | while read file; do
test x"$file" = x"" && continue
read lastline
#echo "|$file|$lastline"
if test x"$lastline" = x""; then
echo "$file"
fi
done