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HADOOP-13685. Document -safely option of rm command. Contributed by Xiaoyu Yao.

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Akira Ajisaka 2016-10-05 20:40:22 +09:00
parent 0992708d79
commit 9a61b52fbe
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hadoop-common-project/hadoop-common/src/site/markdown/FileSystemShell.md
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@ -504,7 +504,7 @@ See [HDFS Snapshots Guide](../hadoop-hdfs/HdfsSnapshots.html).
rm
----
Usage: `hadoop fs -rm [-f] [-r |-R] [-skipTrash] URI [URI ...]`
Usage: `hadoop fs -rm [-f] [-r |-R] [-skipTrash] [-safely] URI [URI ...]`
Delete files specified as args.
@ -523,6 +523,7 @@ Options:
* The -R option deletes the directory and any content under it recursively.
* The -r option is equivalent to -R.
* The -skipTrash option will bypass trash, if enabled, and delete the specified file(s) immediately. This can be useful when it is necessary to delete files from an over-quota directory.
* The -safely option will require safety confirmation before deleting directory with total number of files greater than `hadoop.shell.delete.limit.num.files` (in core-site.xml, default: 100). It can be used with -skipTrash to prevent accidental deletion of large directories. Delay is expected when walking over large directory recursively to count the number of files to be deleted before the confirmation.
Example: