Reading/Deleting Last Line Of File
J. Landman Gay
jacque at hyperactivesw.com
Tue Feb 9 19:05:10 EST 2010
>>> I have a large text file (100,000,000+ records). I need to write a
>>> utility that removes the last record of the file. Is there anyway to
>>> just remove the last record without reading through the complete file
>>> with RunRev?
It sounds like a big file, but Rev is pretty good about managing memory
and swapping to disk. I'd be tempted to try this and see how it works:
delete line -1 of url ("file:mytext.txt")
Worth a test anyway. I've used it on files that were several megs in
size without a problem, but they weren't super huge, just kinda big.
Jacqueline Landman Gay | jacque at hyperactivesw.com
HyperActive Software | http://www.hyperactivesw.com
More information about the Use-livecode