SHTK_CLI_USAGE_ERROR(3) BSD Library Functions Manual SHTK_CLI_USAGE_ERROR(3)NAMEshtk_cli_usage_error — Prints a usage error and exits
LIBRARY
shtk_import cli
SYNOPSISshtk_cli_usage_error message1 [.. messageN]
DESCRIPTION
The shtk_cli_usage_error function prints the given usage error message to
stderr and terminates execution of the script with a return value of 1.
The message can be provided as one or more arguments as depicted by
message1 to messageN; all arguments are concatenated together into a sin‐
gle line.
The printed message has the following form, where ‘progname’ is deter‐
mined by shtk_cli_progname(3):
progname: E: message1 .. messageN
Type 'man progname' for help.
shtk_cli_usage_error should be used to inform the user of problems
directly caused by his invocation of the script (e.g. the use of an
invalid flag). Note that the printed error message refers to a manual
page for the script, so you should make sure to provide one.
SEE ALSOshtk(3), shtk_cli(3)HISTORYshtk_cli_usage_error first appeared in shtk 1.0.
BSD November 5, 2014 BSD