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Search Which Files include Given Text/String in Linux (Examples)
- In this tutorial, we will show you how to search and print which files contain your specified text or string in Ubuntu and other Linux in command line, with examples.
- Method 1: Use grep commandThis command comes useful when you want to filter the output.
- The command options which can be used in grep are: -l or --files-with-matches means only print names of files containing matches, -r or --recursive, to search sub-folders for given directory.
- You may print names of files, matched lines, as well as line numbers of files contain “GParamSpecClass”.
- To show more file content, you may add -A NUM or --after-context=NUM to print NUM lines of trailing context after matching lines, and -B NUM or --before-context=NUM to print NUM lines of leading context before matching lines.
- Sometimes, there may be multiple files or multiple lines match what you search.
- grep supports regex expressions to make searching more flexible.
- Method 2: Use ag command, ag for file searching.
- It prints all the names of files, lines and line numbers that matches. ag command is super fast!
- For example, search “gparamspecclass” under current directory, and only show file-names and how many matches.
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