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#!/bin/sh
usage()
{
cat <<EOF
Usage: $0 [directory] [...]
Usage: $0 --help
Searches the current directory if none is specified.
Print one filename: the single newest ordinary file from all (not each)
of the specified directories.
If there are no ordinary files, there is no output.
Symbolic links are not listed.
EOF
}
case $# in
0) set -- . ;;
1) if [ "$1" = --usage ]
then
usage
exit 0
fi
;;
esac
drop_first_word()
{
sed -ne 's/^[^ ]* //p'
}
extract_newest()
{
sort -z -n -k1,1 -r | head -z -n 1 | xargs -r -0 printf '%s\n'
}
find_simple_files()
{
pattern="%C@ %h/%f\0"
find "$@" -maxdepth 1 -name '.*' -o \( -type f -printf "$pattern" \)
}
find_simple_files "$@" | extract_newest | drop_first_word
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