What this snippet does
A leading space keeps the line out of history when HISTCONTROL allows it.
Why practise typing this
Typing environment & shell code builds muscle memory for the symbols and indentation Linux uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More Linux practice
- Exporting a variableEnvironment & Shell · beginner
- Variables do not escape a subshellEnvironment & Shell · beginner
- Adding to PATHEnvironment & Shell · intermediate
- Loading variables into the current shellEnvironment & Shell · intermediate
- Creating a shortcutEnvironment & Shell · beginner
- Searching your historyEnvironment & Shell · intermediate