Can grep search multiple files?

Yes, grep can search multiple files. You can specify multiple file names as arguments, or use wildcards to search through a group of files. Additionally, you can use the -r (or --recursive) option to search through all files in a directory and its subdirectories.

Examples:

1. Specifying Multiple Files:

   grep "search_term" file1.txt file2.txt file3.txt

2. Using Wildcards:

   grep "search_term" *.txt

   This command searches for "search_term" in all .txt files in the current directory.

3. Recursive Search:

   grep -r "search_term" /path/to/directory

   This command searches for "search_term" in all files within the specified directory and its subdirectories.

Using these methods, grep can efficiently search through multiple files at once.