(since EVL 1.2)
This component writes records passing through the
<file> in text format.
Works only when variable ‘EVL_WATCHER’ is set to ‘1’, otherwise does nothing. One can use it for debugging data in ‘DEV’ or ‘TEST’ environment, but it would be switched off in ‘PROD’.
If not full path to the
<file> is specified, it writes into directory defined by
‘EVL_WATCHER_DIR’ environment variable, which is by default ‘watcher’ subfolder of
EVD is EVL data definition file, for details see evl-evd(5).
Watcher <flow> <file> (<evd>|-d <inline_evd>) [-x|--text-input] evl watcher ( --help | --usage | --version )
- -d, --output-definition=<inline_evd>
either this option or the file
<evd_out>must be presented. Example: ‘-d 'user_sum long'’
- -x, --text-input
suppose the input as text, not binary
print this help and exit
print short usage information and exit
print version and exit
- In EVL job (‘evs’ file):
Sort FLOW_01 FLOW_02 some.evd --key='id' Watcher FLOW_02 sorted.csv some.evd