How To Search Multiple Words In Linux File

23 Aug, 2021

Find varwwwhttp -type f -exec grep -iE STRING1STRING2 devnull Or -e. Here Im invoking it with the following parameters.

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Using grep to Find a Specific Word in a File By default grep searches through the contents of files as well as their file names.

How to search multiple words in linux file. In Linux or Unix like operating system the grep command utility is widely used. While the official Adobe Reader offers multiple PDF search functionality ie searching all PDF files in a directory it has discontinued on Linux. Egrep -r word1word2 directory-path Example egrep -r.

On the command line the grep command has this function covered very well but youll need to know the basics of how to use it. I case-insensitive search. Grep -RiIl search xargs sed -i ssearchreplaceg Let me now dissect it and take a quick look at the different tools in use.

You can also specify multiple strings to search using -e switch. Assuming that you want to find all files in the current directory withsh andtxt file extensions you can do this by running the command below. For example to search for three words add the desired string of characters followed by a backslash and pipe.

Searching for Current Word The current word is the word where the cursor is located. This operator has the lowest precedence of all regular expression operators. It will enable the user to specify all potential matches whether they are expression sets or literal strings.

If you need to search in a specific file in this case somefiletxt. Find varwwwhttp -type f -exec grep -i STRING1STRING2 devnull. That said smaller or less powerful Linux boxes might prefer to run a different command like ack.

The alternation operator pipe allows you to specify different possible matches that can be literal strings or expression sets. On GUI most text editors also have the ability to search. We can also search for multiple words by using the egrep command with character.

To search for more than two words keep adding them in the same manner. Grep foo homethisuserbarbazsomefiletxt. Grep options searched string path -r is an option which states that it will use recursive search.

Instead of specifying the pattern and prompting VimVi to find it move the cursor to a word and instruct it to find the next instance of that word. Basically the syntax is. To search for multiple patterns use the OR alternation operator.

Search String in Specific Files. Below example will search strings tecadmin and https in all files in varlog directory and its sub-directories. When it comes to searching text within a PDF document pretty much every PDF reader software supports it.

On a Linux system the need to search one or multiple files for a specific text string can arise quite often. Using egrep r word1word2. However it becomes tricky when there are more than one PDF document to search.

Grep is a utility for searching for strings through multiple text files. If you wish to search for multiple patterns you can use the OR operator referred to as the alternation operator. This post explains about grep command to find multiple strings or keyword from file.

This is similar to egrep command. Its included on the majority of Linux systems and is generally identical across distros. R perform a recursive search also across symbolic links.

Let us proceed to look at some examples of find command in Linux. Grep -rlw -e tecadmin -e https varlog. Grep is a command-line utility for searching plain-text data sets for lines matching a regular expression.

-type f -name sh -o -name txt. Find varwwwhttp -type f -exec grep -i -e STRING -e STRING2 devnull With some implementations at least on GNU systems OSX and FreeBSD you can escape. In the below example we are searching for files containing either the word config or the word comma.

This operatorpipe looks like this. Grep for Multiple Patterns.

How To Find A String Or Text In A File On Linux Linuxconfig Org