User guide

help
help— help on commands
Defines and shows the syntax for each command that you specify on the command
line. If you do not specify a command, the help command displays information
about itself and lists the commands for which additional information is available.
For each argument (or command) on the command line, the help command tries
to find all topics that match that argument. For example, if there are topics on
exit, examine, and entry, the help ex command displays the help text for both
exit and examine.
Wildcards are supported. For example, help * generates the expected behavior.
Topics are treated as regular expressions that have the same rules as regular
expressions for the shell. For more information on regular expressions, see the
grep command. Help topics are case sensitive.
When the help command describes command syntax, the following conventions
are used:
<item> Angle brackets denote a variable for which you must specify a
value.
[<item>] Square brackets enclose optional parameters, options, or values.
{a,b,c} Braces enclosing items separated by commas indicate mutually
exclusive items. Choose only one of a, b, or c.
{a|b|c} Braces enclosing items separated by vertical bars indicate
combinatorial items. Choose any combination of a, b, c.
You can use the help and man commands interchangeably.
Syntax
help or man [ command1 ][ command2 . . . ]
Arguments
command1 command2 . . .
Specifies the commands or topics for which you request help.
Examples
1.
>>> help # List all topics.
Requests a list of topics for which help is available.
Console Commands 13–57