You can use the -i flag which makes your pattern case insensitive: grep -iF “success…” file1 Also, there is no need for cat. grep takes a file with the syntax grep <pattern> <file>. I also used the -F flag to search for a fixed string to avoid escaping the ellipsis.
The -Pattern parameter in Select-String supports an array of patterns. So the one you’re looking for is: Get-Content .\doc.txt | Select-String -Pattern (Get-Content .\regex.txt) This searches through the textfile doc.txt by using every regex(one per line) in regex.txt
You’re looking for a non-greedy (or lazy) match. To get a non-greedy match in regular expressions you need to use the modifier ? after the quantifier. For example you can change .* to .*?. By default grep doesn’t support non-greedy modifiers, but you can use grep -P to use the Perl syntax.
why not just find . -not -iwholename ‘*.svn*’ The -not predicate negates everything that has .svn anywhere in the path. So in your case it would be find -not -iwholename ‘*.svn*’ -name ‘messages.*’ -exec grep -Iw uint {} + \;
findstr can do recursive searches (/S) and supports some variant of regex syntax (/R). C:\>findstr /? Searches for strings in files. FINDSTR [/B] [/E] [/L] [/R] [/S] [/I] [/X] [/V] [/N] [/M] [/O] [/P] [/F:file] [/C:string] [/G:file] [/D:dir list] [/A:color attributes] [/OFF[LINE]] strings [[drive:][path]filename[ …]] /B Matches pattern if at the beginning of a line. … Read more
Use tr ‘\n’ ‘ ‘ to translate all newline characters to spaces: $ grep pattern file | tr ‘\n’ ‘ ‘ Note: grep reads files, cat concatenates files. Don’t cat file | grep! Edit: tr can only handle single character translations. You could use awk to change the output record separator like: $ grep pattern … Read more
grep uses regexes; . means “any character” in a regex. If you want a literal string, use grep -F, fgrep, or escape the . to \.. Don’t forget to wrap your string in double quotes. Or else you should use \\. So, your command would need to be: grep -r “0\.49” * or grep -r … Read more
grep -l (That’s a lowercase L)
Grep is an awkward tool for this operation. pcregrep which is found in most of the modern Linux systems can be used as pcregrep -M ‘abc.*(\n|.)*efg’ test.txt where -M, –multiline allow patterns to match more than one line There is a newer pcre2grep also. Both are provided by the PCRE project. pcre2grep is available for … Read more
If your grep supports -R, do: grep -R ‘string’ dir/ If not, then use find: find dir/ -type f -exec grep -H ‘string’ {} +