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This Meta-Update script is a change to the Path List script.

Like Path List, [Main] declares script arguments and usage, and [Do] loops through delimited string elements in $V, str$ — set in the AssignInit section from the Path or other environment variable.

We add an Until= to stop the Loop= when a file is found. We add an AssignTerm= to issue a message when [Do] is done.

Usage examples:

PathFind.ini	Do	-ptn SthMupd.exe
PathFind.ini	Do	-ptn 500-Arch.ini -var SthScriptPath

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All Meta-Update Sample Scripts have plenty of comments. Feel free to take a copy and edit. Use the debugger to single-step through the scripts.

[Main] is used to describe arguments, set up server connections, do initial and terminating assignments, and give usage information.

Here we have one required argument and one optional argument: -ptn, and -var.

The AssignInit could be either here in [Main] or in [Do] below.

Usage examples:

PathFind.ini	Do	-ptn SthMupd.exe
PathFind.ini	Do	-ptn 500-Arch.ini -var SthScriptPath

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This Meta-Update script is a change to the Path List script.

Instead of a message for each path element, we'll check for the existence of a file and quit when found.

[Main] is used to describe arguments, set up server connections, have initial and terminating assignments, and give usage information.

Here we have one required argument and one optional: -ptn and -var.

The AssignInit could be either here in [Main] or in [Do] below.

Usage examples:

PathFind.ini	Do	-ptn SthMupd.exe
PathFind.ini	Do	-ptn 500-Arch.ini -var SthScriptPath

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Like Path List, [Do] uses an AssignInit= to set the Environment variable into $V, str$.

All AssignInit sections are processed before a section begins its iterations.

Also like Path List, [Do] uses an AssignPre=, but here to see if the file exists on that string element inplace of simply listing that element.

Unlike Path List, [Do] uses an Until= to quit a section when the condition is true and an AssignTerm= to report the results.

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Like Path List, [Do] iterates through a semi-colon separated string using a Loop=. The string is set from an Environment variable by our AssignInit into $V, str$.

Here, our AssignPre= appends the file name to the path directory and spawns a directory command.

The dir command sers ile name to the path directory and spawns a directory command.

dir sets a return code of 0 if the file is found and 1 if not found. This is set in $V, rc$.

Output from the command is captured in $V, stdout$ and $V, stderr$.

Our Until= breaks the Loop= when the file is found.

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[Do] AssignTerm=

After [Do] is all done its Loop=, the Tag Spath is undefined and any AssignTerm sections are processed.

We simply use the saved script variables $V, rc$ and $V, dir$ to issue a message saying which directory the file was found in or that the file was not found.