![]() ![]() Here's the output: How to Ignore Case Distinctions using -i If we want to find the string "fruit" in the file fruits.txt, we can do so like this: grep "fruit" fruits.txt Contents of fruits.txt How to Find a Matching String with grep Melons – watermelons, rockmelons and honeydew melons ![]() Tropical and exotic – bananas and mangoesīerries – strawBERRIES, raspberries, blueberries, kiwifruit and passionfruit ![]() Stone fruit – nectarines, apricots, peaches and plums In the coming examples, we will use the file fruits.txt with the following content: apples and pearsĬitrus – oranges, grapefruits, mandarins and limes -c: Count the number of occurrences of the provided pattern.-w: Find the exact matching word from the input file or string.-n, -line-number: Prefix each line of the matching output with the line number in the input file.-v, -invert-match: Selects the non-matching lines of the provided input pattern.-i, -ignore-case: Ignores case distinctions in patterns and input data.In this article, we will discuss the following options that can be used with grep: It is a good practice to close the PATTERN in quotes when grep is used in a shell command. Grep finds each line that matched the provided PATTERN. In the above syntax, grep searches for PATTERNS in each FILE. The syntax of the grep command is as follows: grep PATTERNS Grep syntax In this article, we will discuss the grep command's syntax and its usage with some examples. If you are a system admin who needs to scrape through log files or a developer trying to find certain occurrences in the code file, then grep is a powerful command to use. grep is short for "global regular expression print". Grep is a useful command to search for matching patterns in a file. ![]()
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