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#!/bin/bash
# Copyright Cédric Picard 2014 -- License DWTFYW -- inspired by Ranger's
set -e
if [ $# -ne 0 ] ; then
for i in "$@" ; do printf "%s\n" "$i" ; done | "$0"
exit
fi
[ -x "$(which "$EDITOR" 2>/dev/null)" ] || EDITOR=vi
file=/tmp/blkrn-$$
cat > ${file}.1
exec </dev/tty >/dev/tty
cp ${file}.1 ${file}.2
"$EDITOR" ${file}.2
line_count=$(wc -l < ${file}.1)
if [ $line_count -ne $(wc -l < ${file}.2) ] ; then
rm ${file}.1 ${file}.2
echo "Wrong number of lines" >&2
exit 1
fi
paste -d "\n" ${file}.1 ${file}.2 | while [ $line_count -ne 0 ] ; do
line_count=$(($line_count - 1))
read -r input ; input="$(printf "%s" "$input" | sed "s/'/'\"'\"'/")"
read -r output ; output="$(printf "%s" "$output" | sed "s/'/'\"'\"'/")"
if [ "$input" != "$output" ] ; then
echo "mv -v -- '$input' '$output'"
fi
done > ${file}.sh
if [ "$(stat --printf="%s" ${file}.sh)" -ne 0 ] ; then
"$EDITOR" ${file}.sh
sh ${file}.sh
fi
rm ${file}.1 ${file}.2 ${file}.sh
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