Added `plx` and `pplx` commands to run `execx(f"{plx_command}")` most shorter way.
For example when you want to rename files you can do it Pythonic way:
bash
$ mkdir -p /tmp/plx-test && cd /tmp/plx-test
$ touch 111 222 333 && ls
111 222 333
$ ls | plx "mv {line} prefix-{line}"
mv 111 prefix-111
mv 222 prefix-222
mv 333 prefix-333
$ ls
prefix-111 prefix-222 prefix-333
Echo example:
bash
$ ls | plx 'echo {line} {num}'
echo prefix-111 0
prefix-111
echo prefix-222 1
prefix-222
echo prefix-333 2
prefix-333