Revision [1022]
This is an old revision of CommandSet made by DavidLee on 2009-11-25 13:58:22.
Command set
Name
set sets options and positional parametersSynopsis
set [options] [param1 [param2 ...]]Options
-x | Turns on execution tracing (default off) |
-v | Turns on command interpretation parse tracing (default off) |
-e | Turns on "throw on error" mode (default off) |
-xpipe | Turns on the xpipe implementation for pipes (Experimental) (default off) |
The set command also supports all of the global Serialization Options
set options
If any options are specified then they set the global shell options for the current shell.
Preceding any boolean option by a + instead of a - will turn OFF that option.
Example
set +omit-xml-declaration
turns OFF the omit-xml-declaration option
Execute Trace (-x)
If -x is set then commands are printed to the error output prior to executionVerbose (-v)
if -v is set then commands are printed to the error output while parsedThrow On Error (-e)
If -e is set, then an exception is throw equivalent to using the throw command whenever a simple command returns a non-zero value, except when the command is the condition for an if, while or until, or when preceded by a "!".If the shell is not interactive, and the exception is not trapped with a try, it will cause the shell to exit.
set parameters
Sets the positional parameters or prints environment variablesExample: sets $1 to "foo" and $2 to "bar"
$ set foo bar
Positional parameters can also be XML expressions
$ set <[1,"foo",<bar>spam</bar>]>
print variables
With no arguments prints the names and types of all variables as an xml document.Note this differences from the unix shells in that it doesnt print the variables value, this is because
values in xmlsh can be extremely large.
$ set <env> <variable name="a" type="xml"/> <variable name="PATH" type="string"/> </env>
Commands
CategoryCommands