the command in deb_installer.sh is wrong

[martinvalentine]

When running command to execute file deb_installer.sh, I found an error that system doesn't know what command I'm using in that file named sudo chmmod +x /usr/bin/mpvsubconf. Here is what I saw in my terminal:

martinvalentine@mrt-pc:~/MPV-Sub-Configure/installation$ ./deb_installer.sh
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
mpv is already the newest version (0.34.1-1ubuntu3).
0 upgraded, 0 newly installed, 0 to remove and 10 not upgraded.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
openjfx is already the newest version (11.0.11+0-1).
0 upgraded, 0 newly installed, 0 to remove and 10 not upgraded.
sudo: chmmod: command not found