EVL – ETL Tool

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Table of Contents


(since EVL 2.2)

Write standard input or <f_in> into <file.qvd>.


is to be used in EVS job structure definition file. <f_in> is either input file or flow name.

evl writeqvd

is intended for standalone usage, i.e. to be invoked from command line and reading records from standard input.

EVD and EVS are EVL definition files, for details see evl-evd(5) and evl-evs(5).


  <f_in> <file.qvd> (<evd>|-d <inline_evd>)
  [-x|--text-input | -a|--text-input-dos-eol | -b|--text-input-mac-eol]
  [-s|--skip-bom] [-n|--null-as-string[=<string>]]

evl writeqvd
  <file.qvd> (<evd>|-d <inline_evd>)
  [-x|--text-input | -a|--text-input-dos-eol | -b|--text-input-mac-eol]
  [-s|--skip-bom] [-n|--null-as-string[=<string>]]

evl writeqvd
  ( --help | --usage | --version )


-d, --data-definition=<inline_evd>

either this option or the file <evd> must be presented. Example: ‘-d 'id int, name string, started timestamp'

-n, --null-as-string[=<string>]

write <string> instead of NULL value, without <string> specified it writes an empty string instead of NULL


skip utf-8 BOM (Byte order mark) from the beginning of input, i.e. EF BB BF. Windows usually add it to files in UTF8 encoding

-x, --text-input

suppose the input as text, not binary


suppose the input as text with CRLF as end of line


suppose the input as text with CR as end of line

Standard options:


print this help and exit


print short usage information and exit

-v, --verbose

print to stderr info/debug messages of the component


print version and exit