added 33 utility docs

[EcaleD]

closes: #ISSUE_Number

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added 33 utility docs; fixed some link issues

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[TomShawn]

In the sys-utilities directory, some files are named as the command-line tool name (like analyzedb.md and clusterdb.md) while some are named as db-util-xx.md. Maybe we can use a unified naming rule for all the file names.

[tuhaihe]

In the sys-utilities directory, some files are named as the command-line tool name (like analyzedb.md and clusterdb.md) while some are named as db-util-xx.md. Maybe we can use a unified naming rule for all the file names.

I can help unify the file name formats in the following days. How about change "db-util-xx.md" to "xx.md"? Those files are all under the db-util dir. So I think there is no need to keep the db-util- prefix for the file name. @TomShawn

[TomShawn]

In the sys-utilities directory, some files are named as the command-line tool name (like analyzedb.md and clusterdb.md) while some are named as db-util-xx.md. Maybe we can use a unified naming rule for all the file names.

I can help unify the file name formats in the following days. How about change "db-util-xx.md" to "xx.md"? Those files are all under the db-util dir. So I think there is no need to keep the db-util- prefix for the file name. @TomShawn

No problem. It is better to change the file name pattern to xx.md. Thanks!