Sudo grep -e string1 -e string2 -e string3 /home/nl/test.txt Code language: PHP ( php ) Grep Exact Matches

sudo grep -E 'string1|string2|string3' /home/nl/test.txt See the examples below to see what I mean. If you want to search for regex patterns, use -E or -e option. The syntax above only allows searching for raw strings. sudo grep 'string1|string2|string3' /home/nl/test.txt Code language: JavaScript ( javascript ) In this case, you can use only the filename in the command as you’re already in that directory. sudo grep 'string1|string2|string3' /home/nl/test.txt Code language: JavaScript ( javascript )Īlternatively, you can navigate into /home/nl and do the grep search. Suppose you want to search for multiple strings in a single file located in /home/nl/test.txt, and you want to do it in a single run, use the command below. In both cases, grep will output all the lines that might contain any of the listed patterns. command | grep 'pattern1|pattern2|.' Code language: JavaScript ( javascript ) What we’ve just did is asking grep to look for multiple patterns (pattern1, pattern2, …) in a file.Īlternatively, we can pass (pipe) the output of another command to grep to search it for required strings by running the following commands. sudo grep 'pattern1|pattern2|.' /path/to/file Code language: JavaScript ( javascript ) In other words, you have to use | instead of | in a grep command. grep use | symbol to separate two patterns in a command.īut before you actually use it, remember to escape it so that grep doesn’t mistakenly recognize it as part of the pattern. You can use the | symbol to grep multiple strings or patterns. If you want to search multiple patterns or strings in a particular file, use the grep functionality to sort within a file with the help of more than one input word in the command. In this article, we will show you how to use grep to search multiple strings and patterns at once in Linux. Ultimately, it’s up to you which of these utilities you choose to use. However, if you prefer, you can also type grep to get the same results. Out of these, fgrep is often the best option due to its speed and its focus on strings and words. There are a variety of grep utilities that can help you search through your files, including grep, egrep, and fgrep. The name, grep, derives from the command used to perform a similar operation, using the Unix/Linux text editor ed: g/re/p Grep also offers a variety of options to make your search more efficient. It’s a great way to customize your search depending on your needs.

Grep is a powerful tool that lets you search for strings, patterns, and words in files and text outputs from commands.

Grep multiple