The grep command-line utility is used to search for strings, with options such as -r for recursive search, / for file path separation, and --e/-e for specifying a search pattern. In this case, it searches for files containing the string 'xunit.runners'.

Cell 4

grep - r.
/ -e 'xunit.runners'

bash
#!/bin/bash

# Function to find files containing a specific string recursively
find_xunit_files() {
  # Default directory to search, can be overridden by the caller
  local start_dir="${1:-.}"

  # String to search for, case-insensitive
  local pattern='xunit.runners'

  # Search recursively for files containing the pattern
  find "$start_dir" -type f -exec grep -q -i -e "$pattern" {} \; -print
}

# Example usage: search for files containing "xunit.runners" in the current directory
find_xunit_files

Code Breakdown

• grep: A command-line utility used for searching and matching strings.
• -r: Recursively search through directories and subdirectories.
• /: The file path separator.
• --e (or -e): Specify a pattern to search for.
• 'xunit.runners': The pattern to search for, in this case, files containing the string 'xunit.runners'.