Grep multiple lines text file

Asked 10 years, 4 months ago. Active 6 years, 11 months ago. Viewed 64k times. Improve this question. Rupesh Pawar Rupesh Pawar 3 3 gold badges 9 9 silver badges 9 9 bronze badges. Do you mean to do something else? Add a comment. Active Oldest Votes.

Improve this answer. Rommudoh Rommudoh 4 4 bronze badges. If you do not know where exactly the files are located, but know their names, you can use find : find. Mark D Mark D 1, 2 2 gold badges 12 12 silver badges 25 25 bronze badges. You use "and" instead of "or" logic between the files, 2. There is no need for mixing find into this, 3. Just what would be the purpose of the -print at the end?! I just fixed it. You also have a point about not needing to use find, I use the command when I don't know what which file things are in but know what information I'm looking for.

All the file s which name has "test" will appear. You can play with grep as per your requirement. Note: As the grep is a generic string classification. It can result in giving you not only file names. Visit site. It is a command line tool used in UNIX and Linux systems to search a specified pattern in a file or group of file s. How to use grep to just show filenames. How to use grep to search for strings in files on the This is quite logical, as that's what expected of this tool. However, there might be cases wherein the requirement could be to get names of those file s that do not contain the searched pattern.

A FILE of "-" stands for standard input. If no FILE is given, recursive searches examine the working directory, and nonrecursive searches read standard input. Linux - How can I "grep" recursively filtering the name of The -H tells grep to print the file name as well as the matched line.

Assuming you have a new enough version of bash, use globstar : More Info At superuser. When the grep command comes across a directory, it will state the directory's name followed by " Is a directory". This can be seen above with the Test directory. Many other options could be used with grep.

Bash - Search with "grep" for folder names - Super User hot superuser. Is there any way, I can search for a folder name? Stack Exchange Network. Grep - find and echo file names only with pattern found So if there is a match it will be shown on the console; if there is no match within a file , no line will be printed for that file. The text search pattern is called a regular expression. When it finds a match, it prints the line with the result.

How to perform grep operation on all files in a directory? It is one of the most used Linux utility commands to display the lines that contain the pattern that we are trying to search. Normally, the pattern that we are trying to search in the file is referred to as the regular expression.

Syntax More Info At www. If you want to monitor log file s in one directory or if you want to search through all text file s, use an asterisk and the file extension instead of a file name. For example, to search for warnings and errors through all. The pattern that is searched in the file is referred to as the regular expression grep stands for global search for regular expression and print out. How to grep multiple lines from a text file using another text file?

Registered User. Join Date: May I would like to use grep to select multiple lines from a text file using a single-column text file. Basically I want to only select lines from the first text file where the second column of the first text file matches the second text file. How do I go about doing that? Join Date: Dec Can you show an example? Does this demonstrate how it can be done?

Sure: 1st text file: Code :. Code :. Last edited by Corona; at PM.. Reason: Code tags, please. Join Date: Aug You're asking for tiny variations on nearly the exact same thing, over and over.

If you learned the awk language, it would be very simple for you to slightly change all the things you've already been given, to do these things yourself. You've also forgotten to post in code tags again. Find all posts by Corona How would I modify the code if instead of printing the rows that match, the output prints the rows that do not match so that the output looks like: Code :. Last edited by tukuyomi; at PM.. Reason: Nitpick :p. Shell Programming and Scripting.