[Coco] OS9 Arc

[Bill Pierce]

Curtis, this isn't the "archiving" utility "dearc", it's a disk copy utility called "arc" (as in arching files from one disk to another). It checks the last modified date and keeps the newest version when a duplicate exists on the disk.
Here's the usage from arc:

Usage: arc [-acdeflmuv] from_dir to_dir
     a = all files
     c = confirm file if not there
     d = confirm non-existant directory
     e = confirm existing directory
     f = prevent copy of files
    ln = only n levels of the tree (1..9)
     m = do multilple (all) directories
     v = verify the copy
     u = force uppercase for comparisons

As you can see, it copies files, directories, subdirectories, etc
It's not an archiving util like zip or lzh.

 

 


Bill Pierce
"Charlie stole the handle, and the train it won't stop going, no way to slow down!" - Ian Anderson - Jethro Tull

 

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-----Original Message-----
From: L. Curtis Boyle <curtisboyle at sasktel.net>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Wed, Jan 4, 2017 7:40 pm
Subject: Re: [Coco] OS9 Arc

Going off old memory, I am pretty sure it is a CRC check, like LHA and ZIP. Sent from my iPhone> On Jan 4, 2017, at 5:36 PM, William Carlin <whcarlinjr at gmail.com> wrote:> > I am continually amazed at the resiliency and speed of the OS9 Arc> command.  I discovered it was one of the included binaries on Bill's "XRoar> Coco 2b Becker Port Starter Kit".  Now I am flabbergasted that this program> works so well within the memory constraints of the 64k Color Computer.> > I have always wondered about the "verify" option in this program.  It does> not appear to be doing a "byte by byte" comparison of the source and> destination files like the cmp command does.  Does this program use some> kind of checksum to determine if the destination file is different from the> source?  Is the source code for this program available somewhere online?  I> checked though my extensive archives of OS9 software and can only find the> binary archive but no source code.> > William> > CoCo 4 ever> > -- > Coco mailing list> Coco at maltedmedia.com> https://pairlist5.pair.net/mailman/listinfo/coco> -- Coco mailing listCoco at maltedmedia.comhttps://pairlist5.pair.net/mailman/listinfo/coco