By using thegrepcommand, you can customize how the tool searches for a pattern or multiple patterns in this case. You can grep multiple strings in different files and directories. The tool prints all lines that contain the words you specify as a search pattern. In this guide, we will show...
numbers, wild cards, and other special characters let you find much more than mere words. You can search for just about any string of characters: IP addresses in log files; phone numbers in contact lists; or specific strings containing a series of numbers, letters, or other characters. Using...
Now, to have more concepts related to the pattern of strings, we create a new text file of “linux.txt” where we store some statement lines data and utilize the simple “grep –I”. We search the “Linux” and “multiple” string in the file that could perform without any case sensit...
Find multiple strings You can also use grep to find multiple words or strings. You can specify multiple patterns by using the -e switch. Let’s try searching a text document for two different strings: $ grep -e 'Class 1' -e Todd Students.txt ...
Multiple files can be listed, and wildcards can be used. -h Suppress printing of filenames. -i Become case-insensitive. -r Recursively search subdirectories. -v Verbose; print name of each subdirectory as it is searched. -z Search for wide character strings....
Searching for multiple patterns (OR): grep -E “pattern1|pattern2” filename You can also use the grep command to search multiple strings at the same time. This is also called thegrep OR operation. Grep Example 6:Search for the terms “Linux or linux” in the text file. Also, search...
grepWith Multiple Strings To use multiple phrases, separated by newlines, to capture relevant matches in a file or text stream from a program, you can use the-F/--fixed-stringsto specify them. You can pass in a string shown below instead for a small number of matches, with a dollar sig...
How to use grep to match multiple strings in the same line? grep 'string1\|string2' filename 1. grep -E "string1|string2" filename 1. How can I grep for a string that begins with a dash/hyphen? 1. Quote AND/OR escape
Note:For more details, refer to thegrep multiple strings and patternsexamples. Grouping Regular expressions allow grouping patterns into one item. Place the group in escaped parenthesis for regular regex, or use extended. For example, search for the stringbashrcand make therccharacters optional: ...
grep is extremely powerful but can be quite intimidating to use, so today, you'll learn some basics. If you are looking for some information within the documents on your machine, usually, you'll be looking for several words at once. This article focuses on how to search multiple strings u...