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xmlsort - sorts 'records' in XML files


xmlsort -r=<recordname> [ <other options> ] [ <filename> ]

-r <name> name of the elements to be sorted
-k <keys> child nodes to be used as sort keys
-i ignore case when sorting
-s normalise whitespace when comparing sort keys
-t <dir> buffer records to named directory rather than in memory
-m <bytes> set memory chunk size for disk buffering
-h help - display the full documentation

xmlsort -r 'person' -k 'lastname;firstname' -i -s in.xml >out.xml


This script takes an XML document either on STDIN or from a named file and writes a sorted
version of the file to STDOUT. The "-r" option should be used to identify 'records' in
the document - the bits you want sorted. Elements before and after the records will be
unaffected by the sort.


Here is a brief summary of the command line options (and the XML::Filter::Sort options
which they correspond to). For more details see XML::Filter::Sort.

-r <recordname> (Record)
The name of the elements to be sorted. This can be a simple element name like
'person' or a pathname like 'employees/person' (only person elements contained
directly within an employees element).

-k <keys> (Keys)
Semicolon separated list of elements (or attributes) within a record which should be
used as sort keys. Each key can optionally be followed by 'alpha' or 'num' to
indicate alphanumeric of numeric sorting and 'asc' or 'desc' for ascending or
descending order (eg: -k 'lastname;firstname;age,n,d').

-i (IgnoreCase)
This option makes sort comparisons case insensitive.

-s (NormaliseKeySpace)
By default all whitespace in the sort key elements is considered significant.
Specifying -s will case leading and trailing whitespace to be stripped and internal
whitespace runs to be collapsed to a single space.

-t <directory> (TempDir)
When sorting large documents, it may be prudent to use disk buffering rather than
memory buffering. This option allows you to specify where temporary files should be

-m <bytes> (MaxMem)
If you use the -t option to enable disk buffering, records will be collected in memory
in 'chunks' of up to about 10 megabytes before being sorted and spooled to temporary
files. This option allows you to specify a larger chunk size. A suffix of K or M
indicates kilobytes or megabytes respectively.

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