x_x:tldr:241d8
This command seems to be using a shell script notation. Here's the breakdown of each component:
-
x_x
is likely the name of the script or program being executed. -
-h
is a flag or option being passed to thex_x
command. The meaning of-h
can vary depending on the specific command, but commonly it stands for "help" and is used to display information about how to use the command. -
${0}
represents a parameter being passed to thex_x
command. In shell scripting,${0}
typically refers to the name of the script itself, so this command is passing the name of the script as an argument tox_x
. -
${select}
represents another parameter being passed to thex_x
command. The value of${select}
would depend on how it has been defined or assigned in the script (not shown in the given command).
Overall, this command is invoking the x_x
command with the -h
option, and also passing the name of the script ${0}
and the value of ${select}
as parameters.