Searching for terms within a file or across multiple files? - Use grep command.
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grep 'searchTerm' filePath= Searches for the search term within the mentioned file. -
grep 'searchTerm' *= Searches for the search term across all the files present in the Current Working Directory.
(Note: grep does NOT search for terms within files inside directories that are part of PWD)
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grep 'searchTerm' directoryPath/*= Searches for the search term across all the files present in the Mentioned in the Directory -
grep -r 'searchTerm' directoryPath/*= Searches RECURSIVELY for the term inside specified directory including searching all subdirectory's files -
grep -r 'searchTerm' .= Searches RECURSIVELY for the term inside CURRENT directory including searching all subdirectory's files
(OR)
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grep -r 'searchTerm' *= Searches RECURSIVELY for the term inside CURRENT directory including searching all subdirectory's files -
grep -n 'searchTerm' filePath= Shows matches for the search term along with the Line Number. -
grep -l 'searchTerm' filePath= Shows only matched files for the search term but does not display content where it appears(only file names) -
grep -v 'searchTerm' filePath= Shows Lines(contents of lines) of matched files that DO NOT contain the search term (reverse of the usual grep) -
grep -i 'searchTerm' filePath= Shows matched lines for the search term in matched files by IGNORING CASE.
Use -i option to ignore case of search term while matching.