Issue
I have a file that is 50 MB and only one line. It is corrupt json and I am searching for a substring.
I have a problem with grep that it does not support lazy search in the default syntax. And pearl syntax doesn't seem to be supported on MacOS.
Here is a basic expression that does work but only returns the id, while I need the entire object
grep -o '1234' largefile
Here are some things I tried that did not work
grep -oP '1234.*?globalId' largefile
P not supported
grep -F '1234' largefile | grep -o -E '.{30} 1234.{500}'
invalid repetition count(s)
grep -o '1234.{100}' largefile
doesn't return anything
How can I do this search? It doens't need to be grep. I sometimes read about awk, perl, ripgrep and other stuff that I have never had reason to try.
Solution
Use Perl one-liner if grep -P is not supported. For example, this will print all matches captured in parens, 1 match per line:
perl -lne 'print for /(1234.*?globalId)/g' in_file
Answered By - Timur Shtatland Answer Checked By - Clifford M. (WPSolving Volunteer)