What this snippet does
Sustained non-zero si and so columns mean the machine is swapping and needs more RAM.
Expected output
procs r b swpd free si so
1 0 0 421M 0 0Why practise typing this
Typing monitoring & performance 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.
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