GREP vs. EGREP vs. FGREP
Search for a variety of text fragments through the most powerful commands of terminal i.e. grep, egrep and fgrep.
We'll cover the following...
We'll cover the following...
grep
Definition:
The command grep stands for “global regular expression print”, and is used to search for specified text patterns in files or program outputs.
Syntax:
grep [option(s)] pattern [file(s)]
Options:
| Option | Description |
|---|---|
| -E (extended regexp) | Causes grep to behave like egrep. |
| -F (fixed strings) | Causes grep to behave like fgrep. |
| -G (basic regexp) | Causes grep, egrep, or fgrep to behave like the standard grep utility. |
| -r | To search recursively through an entire directory tree (i.e., a directory and all levels |