Searching Text: grep

grep searches for a pattern inside files. Think of it as Ctrl+F for the terminal.

Syntax

grep "pattern" filename

Useful Flags

• grep -i "word" file — case-insensitive
• grep -n "word" file — show line numbers
• grep -c "word" file — count matches

Your Task

A file called countries.txt contains information about several countries. Search it to find and display only the lines that mention Haiti.