Shell Programming and Scripting

I'm trying to get one specific number out of a text file, in order to use as part of an algorithm in a shell script. It will always come after a specific string and that string won't appear anywhere else in the file.

So I'm trying to search through the file for that one string, then grab the number that comes after it. I'm not sure where to start. Would "grep" or "awk" be good for this?

awk will for sure help you with this.
Give a list of what data you have, how you like the output to be and what criteria the output should be made from.

Eks

Code:

cat file
one
two
three
four
5
six

Code:

awk '/four/ {getline;print}' file
5

Another example. Get the first number found after four

Code:

cat file
one
two
three
3
four
five
5
six
seven
7
eight

Code:

awk '/four/ {f=1} f && /^[0-9]/ {print;exit}' file
5

What is "after"? Same line, next fields, or very next line, or one of the next lines?

What have you tried so far?