CODEWITHSUNDEEP
linuxstringbashsplit
Victor Diaz
Victor Diaz

Reputation: 11

Extract pieces of complex string

How can I get some of the values out of this string?

using function abs using problem type ps Path found with total cost of 8 in 0.0 seconds Search nodes expanded: 183 victorious! Score: 502 Average Score: 502.0 Scores: 502.0 Win Rate: 1/1 (1.00) Record: Win

I need the values for total cost (8) and nodes expanded (183) in this example. (Maybe in another execution I have 47.)

I tried ${str:119:1}, but sometimes the value changes to 10 or 100 and I only get one digit. I need the complete value.

Upvotes: 1

Views: 51

Answers (3)

John1024
John1024

Reputation: 113844

To extract those numbers:

$ echo "$str" | awk -v RS="" '{print $14,$21}'
8 183

If you want to capture those values as conveniently-named shell variables:

$ cost=$(echo "$str" | awk -v RS="" '{print $14}')
$ expanded=$(echo "$str" | awk -v RS="" '{print $21}')

To show that the above worked:

$ echo cost=$cost expanded=$expanded
cost=8 expanded=183

Upvotes: 0

nu11p01n73R
nu11p01n73R

Reputation: 26667

grep can help you

example

$ grep -oP '(nodes expanded:|total cost of) [0-9]+' inputFile
total cost of 8
nodes expanded: 183

OR

if you dont what the string then

$ grep -oP '(nodes expanded:|total cost of) \K[0-9]+' input
8
183

Upvotes: 2

l0b0
l0b0

Reputation: 58808

awk can split strings into "words" and print them. Example:

$ awk '{ print $3 }' <<< 'using function abs using [...]'
abs

Upvotes: 0

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