terminal

Welcome to Linux Practice Terminal!

Type "help" to see available commands.

user@linux:~$

sed - Stream Editor

Learn to find and replace text, delete lines, and transform files using sed.

Step 1

Use sed to substitute "world" with "Linux" in a simple string.

Type: echo 'hello world' | sed 's/world/Linux/'

echo 'hello world' | sed 's/world/Linux/'

Step 2

Replace all occurrences of "Widget" with "SuperWidget" in sales.csv using the g flag.

Step 3

Delete empty lines from log.txt using a regex address with the d command.

Step 4

Pipe log.txt through sed to replace "ERROR" with "WARNING".

Step 5

Delete lines 1 through 3 from todo.txt using a line range address.