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Replace tail -n +5 with appropriate sed

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`sed '1,/^$/d'` skips everything until the first empty line.
This commit is contained in:
Remi Rampin 2016-05-25 12:14:01 -04:00
parent 551ef0434f
commit 861a7e02b6
1 changed files with 2 additions and 2 deletions
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README.md
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@ -154,8 +154,8 @@ Dockviz also supports receiving Docker image or container json data on standard
```
$ curl -s http://localhost:4243/images/json?all=1 | dockviz images --tree
$ curl -s http://localhost:4243/containers/json?all=1 | dockviz containers --dot | dot -Tpng -o containers.png
$ echo -e "GET /images/json?all=1 HTTP/1.0\r\n" | nc -U /var/run/docker.sock | tail -n +5 | dockviz images --tree
$ echo -e "GET /containers/json?all=1 HTTP/1.0\r\n" | nc -U /var/run/docker.sock | tail -n +5 | dockviz containers --dot | dot -Tpng -o containers.png
$ echo -e "GET /images/json?all=1 HTTP/1.0\r\n" | nc -U /var/run/docker.sock | sed '1,/^$/d' | dockviz images --tree
$ echo -e "GET /containers/json?all=1 HTTP/1.0\r\n" | nc -U /var/run/docker.sock | sed '1,/^$/d' | dockviz containers --dot | dot -Tpng -o containers.png
```
Note: GNU netcat doesn't support `-U` (UNIX socket) flag, so OpenBSD variant can be used.