파이썬으로 원하는 파일 검색하기(다중 입력 검색조건..)

$ fcn \*.txt
./foo_bar.txt
./bar_baz_foo.txt
./bar_baz.txt
./foo/baz.txt
./bar/foo_bar.txt
./bar/bar_baz_foo.txt
./bar/bar_baz.txt
./bar/foo_bar_baz.txt
./foo_baz/a.txt
./foo_bar_baz.txt
 
$ fcn \*.txt | grep -P '(?=.*baz)(?=.*foo)'
./bar_baz_foo.txt
./foo/baz.txt
./bar/bar_baz_foo.txt
./bar/foo_bar_baz.txt
./foo_baz/a.txt
./foo_bar_baz.txt
 
$ fcn \*.txt | while read -r line; do grep -Pq '(?=.*baz)(?=.*foo)' <<<$(basename $line) && echo $line; done
./bar_baz_foo.txt
./bar/bar_baz_foo.txt
./bar/foo_bar_baz.txt
./foo_bar_baz.txt

$ cat run.sh
#!/bin/bash
 
echo -n "Input keywords to search : "
read -r keylist
 
set -a $keylist
until [ -z "$1" ] ; do
        pattern+="(?=.*$1)"
        shift
done
 
find $(pwd) -name \*.txt | while read -r line; do grep -Pq "$pattern" <<<$(basename $line) && echo $line; done
 
exit 0;
 
$ bash run.sh
Input keywords to search : foo baz
/home/ymir/t/bar_baz_foo.txt
/home/ymir/t/bar/bar_baz_foo.txt
/home/ymir/t/bar/foo_bar_baz.txt
/home/ymir/t/foo_bar_baz.txt