UNIX for Dummies Questions & Answers

Actually, I don't know much about python but in the awk code, after OFS, it's comma as the output field separator. So, try as above by changing which is in red.

hmm... still no luck. I'm still getting a syntax error, which may be due to me importing the unix commands into python.

By the way, You created an array of tokens with array name LI1.
And, You initialize the value on LI.
And, in awk, You passed LI1 as input.

Code:

LI1 = [] #creates an array of tokens
LI = [3, '*', '(', 9, '+', 4, ')', '*', 5, ''] #hardcoded for testing purposes.
awk -F, -v c=\' '{for(i=0;++i<=NF;){if($i ~ /[0-9]/){gsub(c,x,$i)}}}1' OFS=, $LI1

???

sorry for the confusion, but LI1 is the correct array. LI was created because that was my target output (note that there are no ' characters between the integers). I created LI just to test my code. LI1 is the array that needs to have the ' characters removed. The while loop in my code appends tokens to the array, but also surrounds my tokens with single quotes.

Fantastic malcomex999

But please clarify me few things in your code.

a) what does 'x' signify here? I am not seeing it is declared/initialized elsewhere
b) How can I use the the pattern, single quotes inside the gsub() instead of declaring a variable separately for the purpose of it?
c) One of the element in the array is having '11', but we just have the character class pattern /[0-9]/ to match this '11' instead of the multi-pattern /[0-9]*/. How this works for the multiple instances of the same pattern (i.e) digit?
d) Finally, if I want to remove the "if" statement and to make it simple with just $i ~ /[0-9], how to re-arrange the syntax?

a) You don't need to declare a variable in awk so x is null.
b) gsub(/\047/,x,$i)
c) $i ~ /[0-9]/ matches any digit found in the element. i.e, it matches 11,a11,11a,1a1,aa1. So, it matches in the element that include any digit(0-9).
d) You may need to find a way for that.