xmllint - command line XML tool , useful for detecting errors both in XML code and in the XML parser itself

To verify if an XML document is corrupted or not

$ xmllint sample.xml

To suppress the xmllint from printing the content of XML file to standard output

$ xmllint --noout sample.xml

To format the unformatted xml file

$ xmllint --format unformatted.xml

To reformat XML document with an four-space indent

$ export XMLLINT_INDENT=" " # (four space)

To remove the indentation spaces and newlines using xmllint

$ xmllint --noblanks sample.xml

To remove Document Type Definition from output from xml

$ xmllint --dropdtd sample.xml

To get a time profile

$ xmllint --noout --timing sample.xml

regards,

T.Dhanasekar