How to convert number words into its equivalent digits using shell script

Question

I have a text file containing numbers as follows:

one two three four five six seven nine 

I want to convert it into its equivalent digits like:

12345679

I got the python program.

Is there any way to do it using shell script?

Thanks in advance.

Answer 1

Create a dictionary that maps strings to values:

d = {'zero':'0', 
     'one':'1', 
     'two':'2', 
     'three':'3', 
     'four':'4', 
     'five':'5', 
     'six':'6', 
     'seven':'7', 
     'eight':'8', 
     'nine':'9'}

Pass the sequence of words through the dictionary and join the resultant list and turn it into an integer.

s = 'one two three four five six seven nine' 
sequence = s.split(' ')
int(''.join([d[word] for word in sequence]))