| -ls <path> |
Lists the contents of the directory specified by path, showing the names, permissions, owner, size and modification date for each entry. |
| -lsr <path> |
Behaves like -ls, but recursively displays entries in all subdirectories of path. |
| -du <path> |
Shows disk usage, in bytes, for all the files which match path; filenames are reported with the full HDFS protocol prefix. |
| -dus <path> |
Like -du, but prints a summary of disk usage of all files/directories in the path. |
| -mv <src><dest> |
Moves the file or directory indicated by src to dest, within HDFS. |
| -cp <src> <dest> |
Copies the file or directory identified by src to dest, within HDFS. |
| -rm <path> |
Removes the file or empty directory identified by path. |
| -rmr <path> |
Removes the file or directory identified by path. Recursively deletes any child entries (i.e., files or subdirectories of path). |
| -put <localSrc> <dest> |
Copies the file or directory from the local file system identified by localSrc to dest within the DFS. |
| -copyFromLocal <localSrc> <dest> |
Identical to -put |
| -moveFromLocal <localSrc> <dest> |
Copies the file or directory from the local file system identified by localSrc to dest within HDFS, and then deletes the local copy on success. |
| -get [-crc] <src> <localDest> |
Copies the file or directory in HDFS identified by src to the local file system path identified by localDest. |
| -getmerge <src> <localDest> |
Retrieves all files that match the path src in HDFS, and copies them to a single, merged file in the local file system identified by localDest. |
| -cat <filen-ame> |
Displays the contents of filename on stdout. |
| -copyToLocal <src> <localDest> |
Identical to -get |
| -moveToLocal <src> <localDest> |
Works like -get, but deletes the HDFS copy on success. |
| -mkdir <path> |
Creates a directory named path in HDFS. Creates any parent directories in path that are missing (e.g., mkdir -p in Linux). |
| -setrep [-R] [-w] rep <path> |
Sets the target replication factor for files identified by path to rep. (The actual replication factor will move toward the target over time) |
| -touchz <path> |
Creates a file at path containing the current time as a timestamp. Fails if a file already exists at path, unless the file is already size 0. |
| -test -[ezd] <path> |
Returns 1 if path exists; has zero length; or is a directory or 0 otherwise. |
| -stat [format] <path> |
Prints information about path. Format is a string which accepts file size in blocks (%b), filename (%n), block size (%o), replication (%r), and modification date (%y, %Y). |
| -tail [-f] <file2name> |
Shows the last 1KB of file on stdout. |
| -chmod [-R] mode,mode,... <path>... |
Changes the file permissions associated with one or more objects identified by path.... Performs changes recursively with R. mode is a 3-digit octal mode, or {augo}+/-{rwxX}. Assumes if no scope is specified and does not apply an umask. |
| -chown [-R] [owner][:[group]] <path>... |
Sets the owning user and/or group for files or directories identified by path.... Sets owner recursively if -R is specified. |
| -chgrp [-R] group <path>... |
Sets the owning group for files or directories identified by path.... Sets group recursively if -R is specified. |
| -help <cmd-name> |
Returns usage information for one of the commands listed above. You must omit the leading '-' character in cmd. |