fnk

python from the command line

what it is

A command line interface with functional tendencies that allows you to parse information in the shell using Python.

examples

when providing functions for maps and filters, the default variable used is _. so long as you want to use the default variable, you can simply supply functions with that (ie, _ + 1 , len(_), etc).

add one to each input number and print

echo -e "1\n2\n3" | fnk -m '_ + 1'
>>> 2
>>> 3
>>> 4

take list of full paths and filter out just the parent dir and current file name

ls -d $PWD/*
>>> ~/scripts/fnpy/fnk/fnk.py
>>> ~/scripts/fnpy/fnk/parser.py

ls -d $PWD/* | fnk -m '"/".join(_.split(".")[-1].split("/")[-2:])'
>>> fnk/fnk
>>> fnk/parser

filter out filenames that are .py files

ls
>>> fnk.py
>>> parser.py
>>> README.md
>>> random_text.txt

ls | fnk -f '".py" in _'
>>> fnk.py
>>> parser.py

removed duplicate lines from input data

echo -e "same\nsame\nsame\ndifferent" | fnk -C set -m '_' -e # collect into set with `-C set`, map nothing with `-m _`, and expand output with `-e`
>>> same
>>> different

future

defo needs unit tests written and defo needs multithreading support bcuz python is slow slow slow.