Macro uucore::show_usage_error
source · [−]macro_rules! show_usage_error {
($($args:tt)+) => { ... };
}
Expand description
Show a bad invocation help message in a similar style to GNU coreutils.
Takes a format!
-compatible input and prepends it with the current
utility’s name before printing to stderr.
Examples
// outputs <name>: Couldn't apply foo to bar
// Try '<name> --help' for more information.
show_usage_error!("Couldn't apply {} to {}", "foo", "bar");