linux - How do I use grep to get numbers larger than 50 from a txt file

Question

I am relatively new to grep and unix. I am trying to get the names of people who have won more than 50 races from a txt file. So far the code I have used is, cat file.txt|grep -E "[5-9][0-9]$" but this is only giving me numbers from 50-99. How could I get it from 50-200. Thank you!!

driver	races	wins
Some_Man	90	160
Some_Man	10	80

question from:https://stackoverflow.com/questions/65830509/how-do-i-use-grep-to-get-numbers-larger-than-50-from-a-txt-file

Answer 1

Do you have to use grep? you could use awk like this: awk '{if($[replace with the field number]>50)print$2}' < file.txt

assuming your fields are delimited by spaces, otherwise you could use -F flag to specify delimiter.

if you must use grep, then it's regular expression like you did. to make it 50 to 200 you will do: cat file.txt|grep -E "([5-9][0-9]|1[0-9][0-9])$"