py-cut

#!/usr/bin/env python3

import argparse
import fileinput

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("-d","--delimiter", default=" ", help="-d --delimiter")
    parser.add_argument("-f","--field", help="-f --fields",type=int,nargs=2)
    parser.add_argument('filenames', nargs='*')
    args = parser.parse_args()
    a=args.field[0]
    b=args.field[1]
    d=args.delimiter
    with fileinput.input(args.filenames) as f:
        def process(fp,d,a,b):
            for line in fp:
                f=line.split(d)
                print(d.join(f[a-1:b]), end='')
        process(f,d,a,b)

if __name__ == "__main__":
    main()