In this article I will show how to find text in a file in Linux using grep command.
Grep searches for patterns in each file. Patterns is one or patterns separated by newline characters, and grep prints each line that matches a pattern.
$ grep -rw PATH -e PATTERN
Where is:
-r is recursive
-w only matches the whole words
PATH where search
-e pattern
PATTERN what you serach
-i ignore case
Find Text in File Example
For example, we want to find in which file there is a text12.34.56.78.
Run:
$ grep -rw /etc/ -e 12.34.56.78
Output:
/etc/text_file.txt:IP: 12.34.56.78
So grep found the file with name /etc/text_file.txt
Conclusion
You just learn how to find text in a file in Linux using grep command.
Grep is a powerful tool with many features. Тo learn more about the grep command, read the official documentation on grep man pages.
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