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From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-hadoop Wiki] Trivial Update of "hadoop-0.1-dev/bin/hadoop dfs" by NigelDaley
Date Fri, 02 Mar 2007 05:20:13 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-hadoop Wiki" for change notification.

The following page has been changed by NigelDaley:
http://wiki.apache.org/lucene-hadoop/hadoop-0%2e1-dev/bin/hadoop_dfs

The comment on the change is:
add code font

------------------------------------------------------------------------------
- hadoop dfs is the command used to execute dfs commands. The full syntax is 
+ {{{hadoop dfs}}} is the command used to execute dfs commands. The full syntax is
- hadoop dfs -fs [local | <namenode:port>] [-conf <configuration file>] [-D <property=value>]
[-ls <path>] [-lsr <path>] [-du <path>] [-dus <path>] [-mv <src>
<dst>] [-cp <src> <dst>] [-rm <src>] [-rmr <src>] [-put <localsrc>
<dst>] [-copyFromLocal <localsrc> <dst>] [-moveFromLocal <localsrc>
<dst>] [-get <src> <localdst>] [-getmerge <src> <localdst> [addnl]]
[-cat <src>] [-copyToLocal <src><localdst>] [-moveToLocal <src> <localdst>]
[-mkdir <path>] [-setrep [-R] <rep> <path/file>] [-help [cmd]]
  
+ {{{hadoop dfs -fs [local | <namenode:port>] [-conf <configuration file>] [-D
<property=value>] [-ls <path>] [-lsr <path>] [-du <path>] [-dus <path>]
[-mv <src> <dst>] [-cp <src> <dst>] [-rm <src>] [-rmr <src>]
[-put <localsrc> <dst>] [-copyFromLocal <localsrc> <dst>] [-moveFromLocal
<localsrc> <dst>] [-get <src> <localdst>] [-getmerge <src> <localdst>
[addnl]] [-cat <src>] [-copyToLocal <src><localdst>] [-moveToLocal <src>
<localdst>] [-mkdir <path>] [-setrep [-R] <rep> <path/file>] [-help
[cmd]]}}}
+ 
- -fs [local | <namenode:port>]: if not specified, the current configuration is used,
taken from the following, in increasing precedence:
+ {{{-fs [local | <namenode:port>]}}}: if not specified, the current configuration is
used, taken from the following, in increasing precedence:
     * hadoop-default.xml inside the hadoop jar file
     * hadoop-default.xml in $HADOOP_CONF_DIR
     * hadoop-site.xml in $HADOOP_CONF_DIR
- local means use the local file system as your DFS, -<namenode:port> specifies a particular
name node to contact.
+ {{{local}}} means use the local file system as your DFS, {{{<namenode:port>}}} specifies
a particular name node to contact.
  this argument is optional but if used must appear first on the command line.
  
- exactly one additional argument must be specified.
+ Exactly one additional argument must be specified.
- A word about paths: a path may be relative or absolute. An absolute path starts with a '/',
a relative path does not, and always relates to /user/<currentUser>. There is no notion
of current working directory.
  
+ A word about paths: a path may be relative or absolute. An absolute path starts with a '{{{/}}}',
a relative path does not, and always relates to {{{/user/<currentUser>}}}. There is
no notion of current working directory.
+ 
- -ls <path>: list the contents that match the specified file pattern. If path is not
specified, the contents of /user/<currentUser> will be listed. The output contains one
line of the form
+ {{{-ls <path>}}}: List the contents that match the specified file pattern. If path
is not specified, the contents of {{{/user/<currentUser>}}} will be listed. The output
contains one line of the form
-  Found n items
+  {{{Found n items}}}
  followed by one line per directory and one line per file.  Directory entries are of the
form 
-  dirName (full path)   <dir>
+  {{{dirName (full path)   <dir>}}}
  and file entries are of the form
-  fileName(full path)   <r n>   size
+  {{{fileName(full path)   <r n>   size}}}
- where n is the number of replicas specified for the file and size is the size of the file,
in bytes.
+ where {{{n}}} is the number of replicas specified for the file and {{{size}}} is the size
of the file, in bytes.
  
- -lsr <path>: recursively list the contents that match the specified file pattern.
Behaves very similarly to hadoop dfs -ls, except that the first line (Found n items) is omitted,
and data is shown for all the entries in the subtree.
+ {{{-lsr <path>}}}: Recursively list the contents that match the specified file pattern.
Behaves very similarly to {{{hadoop dfs -ls}}}, except that the first line ({{{Found n items}}})
is omitted, and data is shown for all the entries in the subtree.
  
- -du <path>: show the amount of space, in bytes, used by the files that match the specified
file pattern. Equivalent to the unix command "du -sb <path>/*" in case of a directory,
and to "du -b <path>" in case of a file. The output is in the form
+ {{{-du <path>}}}: Show the amount of space, in bytes, used by the files that match
the specified file pattern. Equivalent to the Unix command {{{du -sb <path>/*}}} in
case of a directory, and to {{{du -b <path>}}} in case of a file. The output is in the
form
-  name(full path)  size (in bytes)
+  {{{name(full path)  size (in bytes)}}}
  
- -dus <path>: show the amount of space, in bytes, used by the files that match the
specified file pattern.  Equivalent to the unix command "du -sb <path>"  The output
is in the form 
+ {{{-dus <path>}}}: Show the amount of space, in bytes, used by the files that match
the specified file pattern.  Equivalent to the Unix command {{{du -sb <path>}}}. The
output is in the form 
-  name (full path) size (in bytes)
+  {{{name (full path) size (in bytes)}}}
   
- -mv <src> <dst>: move the files that match the specified file pattern <src>
to a destination <dst>.  When moving multiple files, the destination must be a directory.
+ {{{-mv <src> <dst>}}}: Move the files that match the specified file pattern
{{{<src>}}} to a destination {{{<dst>}}}.  When moving multiple files, the destination
must be a directory.
  
- -cp <src> <dst>: copy files that match the file pattern <src> to a destination.
 When copying multiple files, the destination must be a directory.  Equivalent to the Unix
command cp -rf <src> < dst>
+ {{{-cp <src> <dst>}}}: Copy files that match the file pattern {{{<src>}}}
to a destination.  When copying multiple files, the destination must be a directory.  Equivalent
to the Unix command {{{cp -rf <src> <dst>}}}.
  
- -rm <src>: remove all files that match the specified file pattern.  Equivalent to
the Unix command "rm <src>"
+ {{{-rm <src>}}}: Remove all files that match the specified file pattern.  Equivalent
to the Unix command {{{rm <src>}}}.
  
- -rmr <src>: remove all directories which match the specified file pattern.  Equivlent
to the Unix command "rm -rf <src>".
+ {{{-rmr <src>}}}: Remove all directories which match the specified file pattern. 
Equivlent to the Unix command {{{rm -rf <src>}}}.
  
- -put <localsrc> <dst>: copy a single file from the local file system into dfs.
+ {{{-put <localsrc> <dst>}}}: Copy a single file from the local file system into
dfs.
  
- -copyFromLocal <localsrc> <dst>: identical to the -put command
+ {{{-copyFromLocal <localsrc> <dst>}}}: Identical to the {{{-put}}} command.
  
- -moveFromLocal <localsrc> <dst>: same as -put, except that the source is deleted
after it's copied.
+ {{{-moveFromLocal <localsrc> <dst>}}}: Same as {{{-put}}}, except that the source
is deleted after it is copied.
  
- -get <src> <localdst>: copy files that match the file pattern <src> to
the local name.  <src> is kept.  When copying mutiple files, the destination must be
a directory. 
+ {{{-get <src> <localdst>}}}: Copy files that match the file pattern {{{<src>}}}
to the local destination.  {{{<src>}}} is kept.  When copying mutiple files, the destination
must be a directory. 
  
- -cat <src>:  Fetch all files that match the file pattern <src> and display their
content on stdout.
+ {{{-cat <src>}}}:  Fetch all files that match the file pattern {{{<src>}}} and
display their content on stdout.
  
- -copyToLocal <src><localdst>: identical to the -get command.
+ {{{-copyToLocal <src><localdst>}}}: Identical to the {{{-get}}} command.
  
- -moveToLocal <src> <localdst>: not implemented yet
+ {{{-moveToLocal <src> <localdst>}}}: Not implemented yet.
  
- -mkdir <path>: create a directory in specified location.
+ {{{-mkdir <path>}}}: Create a directory in specified location.
  
- -setrep [-R] <rep> <path/file>: set the replication level of a file. The -R
flag requests a recursive change of replication level for an entire tree
+ {{{-setrep [-R] <rep> <path/file>}}}: Set the replication level of a file. The
{{{-R}}} flag requests a recursive change of replication level for an entire directory tree.
  
- -help [cmd]: Displays help for given command or all commands if none is specified.
+ {{{-help [cmd]}}}: Display help for given command or all commands if no command is specified.
  

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