mirror of
https://github.com/david-schmidt/Davex.git
synced 2025-10-24 11:20:48 -07:00
63 lines
2.9 KiB
Plaintext
63 lines
2.9 KiB
Plaintext
|
|
sysalias -- create an alias for a SYS or S16 file (EXTERNAL) [v1.3]
|
|
|
|
syntax: sysalias <existing_program> <alias_to_create> [-p prefix]
|
|
[-s startpath]
|
|
|
|
ex: sysalias /disk/davex/davex.system /disk/dvx.system
|
|
sysalias davex.dir/davex /disk/start.system
|
|
sysalias /disk/awks/aplworks.system %aw
|
|
sysalias /work/applewr/awd.system %awr -p /work/applewr
|
|
sysalias /disk1/basic.system basic -s /disk1/tons.o.fun
|
|
sysalias /awgs.program/appleworks.gs awgs -s /ss/my.budget
|
|
|
|
Creates a one-block program file (name = alias_to_create) which
|
|
runs a given SYS or S16 file (name = existing_program). Wildcards are
|
|
allowed. This allows program files to appear to be in more than one
|
|
place at a time without taking up much extra disk space. (S16 files
|
|
are useful only on the Apple IIgs.)
|
|
|
|
In most cases, you will want to specify a complete pathname for
|
|
<existing_program>. If you specify a partial pathname, the
|
|
one-block SYS or S16 file created may or may not be able to find the
|
|
program it's looking for, depending on the prefix at run time.
|
|
|
|
If you use -p, the file created will set the prefix as specified before
|
|
running its program file.
|
|
|
|
When you sysalias a SYS file that has a startup buffer, the alias will
|
|
have one, too; the alias passes the startup information along to the
|
|
original program.
|
|
|
|
The -s option can be used with SYS files to put a default "startup
|
|
pathname" in the alias's startup buffer. This name will be passed on
|
|
to the application being aliased. The fifth example above creates a
|
|
file called "basic" which is an alias for "/disk1/basic.system".
|
|
If you type "basic" without a parameter, Davex will run BASIC.SYSTEM,
|
|
and BASIC.SYSTEM will run "/disk2/tons.o.fun", because this was
|
|
specified with the -s option.
|
|
|
|
This alias can still accept a startup path. If you type
|
|
"basic /disk3/more.fun" BASIC.SYSTEM will run the program you
|
|
specified instead.
|
|
|
|
Note: It is advisable to use COMPLETE pathnames as startup
|
|
parameters to BASIC.SYSTEM. Here's why: BASIC.SYSTEM handles
|
|
the Prefix as you would expect ONLY if it refers to a subdirectory.
|
|
If the Prefix is set to a disk's top-level directory, BASIC.SYSTEM
|
|
will behave as if you are Prefixed TO THE DISK BASIC.SYSTEM IS
|
|
RUNNING FROM. This can be confusing. (Alternatively, you could
|
|
use a partial pathname AND use the -p option to set a particular
|
|
subdirectory prefix.)
|
|
|
|
When you sysalias a S16 application, the -s option tells the alias
|
|
to put the specified string in a "files to open" message in the Apple
|
|
IIgs Message Center, the same way the Finder does.
|
|
|
|
In the last example above, the S16 file AWGS is created. When you type
|
|
AWGS on the Davex command line, Davex launches the file
|
|
/awgs.program/appleworks.gs AND creates a "files" message containing
|
|
the path /ss/my.budget. Then AppleWorks GS automatically opens the
|
|
file /ss/my.budget, just like you clicked on that file's icon in the
|
|
Finder.
|