Tar – How to Make Tar Globbing Work with the ‘Change Directory’ Option

From man bash:

${parameter#word}
${parameter##word}

Remove matching prefix pattern. The word is expanded to produce a pattern just as in pathname expansion. If the pattern matches the beginning of the value of parameter, then the result of the expansion is the expanded value of parameter with the shortest matching pattern (the # case) or the longest matching pattern (the ## case) deleted.

Your pattern is *:*:*, and bash will try to remove the shortest matching prefix:

• OK: for the first *:
• DriveC-ReadBytesPerSec: for the second *:
• and nothing for the last *, because it goes for the shortest match.

Compare:

$ # shortest match without surplus *
$ echo ${READRESULT#*:*:}
289283
$ # going for longest match now; the last * will swallow the number
$ echo ${READRESULT##*:*:*}

$ # longest match without the last *
$ echo ${READRESULT##*:*:}
289283
$ # no need to repeat *: because * matches everything before the last : anyway
$ echo ${READRESULT##*:}
289283

Your glob will only match if the name starts with lua. Try this glob:

locate '*lua*so*'