Lines 26-29 in the C code and Lines 16-19 in the Python code detect. (adding 0 forces $2 to be interpreted as a number). When we do search for a string in notepad/word file or browser or. PCRE (Perl Compatible Regular Expresions) have their origin in Perl, and I learned my regex through Perl, so when I’m confused, I go to Perl’s perlre manpage. Or use a tool such as AWK to match the numerical value: awk '$2 0 = 1 ' data_file.txt This will still match “-1.0”, since “-” is a non-word character if that’s a problem, you can extend the pattern and stop looking for words: grep -c ' 1\.0$' data_file.txt You don’t need to involve wc either, since you’re only interested in one match per line, and grep can count lines: grep -cw '1\.0' data_file.txt in “11.002”), you should ask grep to only match words: grep -wo '1\.0' data_file.txt | wc -l Because thats a quite complicated command to type just for removing lines which dont contain a word (or possibly more complex expression), I wonder if there. If you want to only count 1.0 as values, and not substrings ( e.g. It saves each item placed on the clipboard allowing you access to any of those items at a later. Or “escape” the period so it matches a period: grep -o '1\.0' data_file.txt | wc -l Ditto is an extension to the standard windows clipboard. To accurately count “1.0” occurrences, you should ask grep to search for fixed strings: grep -Fo 1.0 data_file.txt | wc -l Grep uses regular expressions by default, and “1.0” is a regular expression matching “1” followed by any character followed by “0”.
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