[Coco] Re: Path command wasRe: OS-9 LVL II

[Robert Gault]

Exactly what is the "test" command or script you are trying to run?

John Donaldson wrote:
> Kevin,
>   The PATH command does not seem to work for me. I have it in my Startup as
> PATH= /DD/CMDS  /DD/PASCAL_CMDS
> 
> I even typed the same thing from the command prompt and I can do a 
> PATH=?  and it will print
> /DD/CMDS
> /DD/PASCAL_CMDS
> 
> BUT when I try and execute a executable file in Pascal_cmds called test, 
> I get ERROR 216 - Path Not
> Found. Only if I move it to the /DD/CMDS  or do a CHX /dd/PASCAL_CMDS 
> will it execute.
> 
> John Donaldson
> 
> 
> 
> KnudsenMJ at aol.com wrote:
> 
>> In a message dated 2/19/05 3:11:25 PM Eastern Standard Time,  
>> kevdig at hypersurf.com writes:
>>
>>  
>>
>>>   In Unix (& Linux), path is NOT a command. It is a  feature of the 
>>> command interpreter (i.e. shell) and some of the exec  LIBRARY 
>>> routines. It is all built on the ENV variables that the Unix  process 
>>> model includes. Does OS9 have ENV?
>>>   
>>
>> OS9 6809 stock shell does not have ENV or anything like PATH, but the  
>> rather popular ShellPlus replacement shell does support ENV 
>> variables.  As  does the Shell in OS9/68K.
>>
>>  
>>
>>> A shell is not the only place to launch a shell from.
>>>   
>>
>>
>> This reminds me, that even under ShellPlus, if you type an executable  
>> program's name, ShellPlus knows how to hunt down the file via the dirs 
>> given in  the PATH variable.
>>
>> But if a program tries to open a file by name, it is going thru the 
>> OS, but  not the Shell, so PATH expansion might not be available.  The 
>> F$Open OS  call is restricted to what Microware built into OS9, and 
>> does not have access to  the powers of ShellPlus.  Even the Linux 
>> C-Library open() command has  limitations in this regard.
>>
>> So if a Pascal or Basic09 program tries to execute another file, which 
>> is  not in /dd/cmds, the PATH won't help.  PATH only works from the 
>> shell, as  in command line or script.  It *should* work right from a 
>> shell("command  string") or system("string") in Basic09 or C, since 
>> these invoke the  shell.  --Mike K.
>>
>>
>>  
>>
> 
> 
>