9. Given s=’/acct/1,696,807/name/’, which of the following statements extracts the number with commas? options  a) expr "$s" : ".*\/\([0-9,]*\)\/" b) expr "$s" : ".*acct\/\(.*\)\/" c) expr "$s" : ".*t\/\(.*\)name.*" d) expr "$s" : ".*acct\/\([0-9a-zA-Z]*\)\/name"   same way with this question too  4. Given s=’/acct/1,696,807/name/’, write a Bash command to extract the numbers without commas. Your command must work for any number of numbers and commas. please in this answer also follow above foemer if you can thanks  can you asnswer only no 4 but answer looks like in no 9 options have

9. Given s=’/acct/1,696,807/name/’, which of the following statements extracts the number with commas?

options 

a) expr "$s" : ".*\/\([0-9,]*\)\/"
b) expr "$s" : ".*acct\/\(.*\)\/"
c) expr "$s" : ".*t\/\(.*\)name.*"
d) expr "$s" : ".*acct\/\([0-9a-zA-Z]*\)\/name"

same way with this question too 

4. Given s=’/acct/1,696,807/name/’, write a Bash command to extract the numbers without commas. Your command must work for any number of numbers and commas. please in this answer also follow above foemer if you can thanks  can you asnswer only no 4 but answer looks like in no 9 options have