* examples in this color or italized lightgray or maybe in silver
| ` --help` | show a short overview of the <command> syntax |
| ⋅`grep` | search and print lines matching a pattern |
| `-i` | case insensitive |
| grep -i 'tere' index.html | search for the string 'tere' in index.html |
| `tere` | tere |
| `tere` | tere |