This is an article with more technical content to test the search functionality.

A command with some regex and special characters:

grep -E -o "[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}" file.txt
sed 's/^[ \t]*//;s/[ \t]*$//' file.txt
sed -i 's/\"hostname\"\:.*$/\"hostname\"\: \"new-hostname\"/' config.json

A JSON object to test:

{
  "name": "John Doe",
  "age": 30,
  "cities": [
    "New York",
    "Paris"
  ],
  "details": {
    "height": 180,
    "weight": 75
  }
}

Using highlight:

...
Init4 = AT+CGDCONT=1,"IP","internetmas","",0,0
...

A tricky string to test the search:

```text This is a test with irregular spacing. Special characters: ~!@#$%^&*()_+`-={}|[]:”;’<>?,./ Escape sequences: \n \t \r \