fgrep

Matches fixed strings in files. Equivalent to grep -F. More information: https://www.gnu.org/software/grep/manual/grep.html.

• Search for an exact string in a file:

fgrep {{search_string}} {{path/to/file}}

• Search only lines that match entirely in one or more files:

fgrep {{[-x|--line-regexp]}} {{search_string}} {{path/to/file1 path/to/file2 ...}}

• Count the number of lines that match the given string in a file:

fgrep {{[-c|--count]}} {{search_string}} {{path/to/file}}

• Show the line number in the file along with the line matched:

fgrep {{[-n|--line-number]}} {{search_string}} {{path/to/file}}

• Display all lines except those that contain the search string:

fgrep {{[-v|--invert-match]}} {{search_string}} {{path/to/file}}

• Display filenames whose content matches the search string at least once:

fgrep {{[-l|--files-with-matches]}} {{search_string}} {{path/to/file1 path/to/file2 ...}}