OK, the trick is to pipe output instead of to error, to the terminal. A colleague of me, expert in golang, told me the issue.
node_exporter --version 2>&1 ... jobenvil schrieb am Freitag, 5. November 2021 um 09:09:07 UTC+1: > node_exporter --version output is not possible either to grep nor to pipe > to a file. > > Usecase: run automatical node_exporter update depending on the outputed > version and the latest GitHub release. > > Is there an insider way to retrieve the node_exporter version like just > 1.1.2? > > > output of node_exporter --version > node_exporter, version 1.1.2 (branch: HEAD, revision: > b597c1244d7bef49e6f3359c87a56dd7707f6719) build user: root@f07de8ca602a > build date: 20210305-09:29:10 go version: go1.15.8 platform: linux/amd64 > > > > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/6de932ee-2854-409f-b080-0cd4134251e6n%40googlegroups.com.
