rgrep

rgrep is a command line tool used for recursively searching files and directories for a specific pattern or regular expression. The name "rgrep" stands for "recursive grep" as it essentially performs the same functionality as the traditional "grep" command, but across multiple directories and subdirectories. It allows users to search for a specific string or pattern within the content of multiple files simultaneously. rgrep is primarily used in Unix-like operating systems, including Linux and macOS. It supports regular expressions, which enables more complex and precise search patterns. This tool saves time and effort for users who frequently need to search for specific strings or patterns in large codebases or directories. By default, rgrep ignores binary files and other types of files that are not relevant for text searching. It displays detailed information about the matching line, including the filename, line number, and the matched text. It also allows users to specify additional options and flags for more advanced search capabilities, such as case-insensitive searching or displaying only the filenames of matching files.