rename oldfile to newfile only if newfile does not exist

nagendrar · 09-09-2009, 05:30 AM

Is there any command to use in c++ on linux platform for renaming oldfile to newfile only if newfile does not exist. If newfile exist it must return some error no.
In windows rename() is used , but in linux it will automatically replaced even though newpath already exists.

ThankU,
Nagendra R.

watcher69b · 09-09-2009, 06:27 AM

or perhaps your program can rename the file before it beings its run, like when you are 1st defining variables. If there is no file then the program should just move on.
something like "mv -f /var/log/bob /var/log/bob.OLD" the -f (force) will keep it from stalling your program.

or you can always append the file with the >>