# "logstash output exec " no output
**URL:** https://discuss.elastic.co/t/logstash-output-exec-no-output/206289
**Category:** Logstash
**Created:** [November 3, 2019, 1:43pm UTC](https://discuss.elastic.co/t/logstash-output-exec-no-output/206289 "2019-11-03T13:43:34Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@pegasus-zhang](https://discuss.elastic.co/u/pegasus-zhang)
#### Post date: [November 3, 2019, 1:43pm UTC](https://discuss.elastic.co/t/logstash-output-exec-no-output/206289/1 "2019-11-03T13:43:35Z")
i tried the exec plugin of logstash:
output {
exec {
codec =\> line { format =\> "%{message}"}
command =\> "echo %{message}"
}
}
but nothing print out , only shown:
[2019-10-30T22:18:42,715][INFO][logstash.outputs.exec][main]
why nothing printed ? (it can be sure that the "message" is not null)
---
### Author:  [@pegasus-zhang](https://discuss.elastic.co/u/pegasus-zhang)
#### Post date: [November 3, 2019, 1:47pm UTC](https://discuss.elastic.co/t/logstash-output-exec-no-output/206289/2 "2019-11-03T13:47:18Z")
while message can be show using "stdout"
output {
stdout {
codec =\> line { format =\> "%{message}"}
}
}
why "exec" is invalid ?
---
### Author:  [@Badger](https://discuss.elastic.co/u/Badger)
#### Post date: [November 3, 2019, 2:20pm UTC](https://discuss.elastic.co/t/logstash-output-exec-no-output/206289/3 "2019-11-03T14:20:20Z")
Try enabling log.level debug
---
### Author:  [@pegasus-zhang](https://discuss.elastic.co/u/pegasus-zhang)
#### Post date: [November 15, 2019, 7:17am UTC](https://discuss.elastic.co/t/logstash-output-exec-no-output/206289/4 "2019-11-15T07:17:53Z")
now it works , thanks 😝
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 13, 2019, 7:17am UTC](https://discuss.elastic.co/t/logstash-output-exec-no-output/206289/5 "2019-12-13T07:17:59Z")
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