Usage: kill_all [options] [signal number]

Options: [ do:ChqVvU ]
  -d, --dry-run                     print what would be done
  -o, --omit <arg>                  omit this pid (can be repeated)
  -h, --help                        Display this help output
  -C, --nocolor                     Disable color output
  -V, --version                     Display software version
  -v, --verbose                     Run verbosely
  -q, --quiet                       Run quietly (repeat to suppress errors)
  -U, --user                        Run in user mode