During installation of update of NoMachine server, the following warnings appear into logs:

/usr/bin/grep: warning: stray  before white space
/usr/NX/scripts/setup/nxnode: line 16126: [: too many arguments
/usr/bin/grep: warning: stray  before #

This problem has been reproduced with NoMachine v. 7.10.1 and 8.0.168 on OpenSuse Tumbleweed version 20220919.

A similar message occurs also when installing/upgrading  NoMachine 8.2.3 on Fedora 37, server logs report:

NX> 700 Installing nxnode version: 8.2.3.
/usr/NX/scripts/setup/nxnode: line 16260: [: too many arguments.
NX> 700 Installing nxserver version: 8.2.3.
NX> 700 Installing nxwebplayer version: 8.2.3.