Fail to get the kubectl-trace binary by curl cmd.

[mJace]

Original command in master to get the binary is to use curl with -Lo

curl -Lo https://github.com/iovisor/kubectl-trace/releases/download/v0.1.0-rc.1/kubectl-trace_0.1.0-rc.1_linux_amd64.tar.gz

curl -LO will be more properly.

Error Log

root@node1:~# curl -Lo https://github.com/iovisor/kubectl-trace/releases/download/v0.1.0-rc.1/kubectl-trace_0.1.0-rc.1_linux_amd64.tar.gz
curl: no URL specified!
curl: try 'curl --help' or 'curl --manual' for more information

Fixed

root@node1:~# curl -LO https://github.com/iovisor/kubectl-trace/releases/download/v0.1.0-rc.1/kubectl-trace_0.1.0-rc.1_linux_amd64.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   634    0   634    0     0    817      0 --:--:-- --:--:-- --:--:--   815
  1 28.2M    1  509k    0     0   186k      0  0:02:35  0:00:02  0:02:33  497k

Env.

root@node1:~# lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.3 LTS
Release:	18.04
Codename:	bionic


curl --version
curl 7.58.0 (x86_64-pc-linux-gnu) libcurl/7.58.0 OpenSSL/1.1.1 zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
Release-Date: 2018-01-24