05-01-2013
Quote:
Originally Posted by
bcute92
i need help with this homework. PLEASE
Assignment:
1. Create a directory "preFinal" in your home directory. In case that such directory exist, rename the existing one into "preFinal.000" and then create empty directory preFinal. While renaming existing preFinal into preFinal.000 you may discover that preFinal.000 also exists, so it needs to be renamed into preFinal.001 and so on.
2. Create empty files "a", "b", "c", etc in directory preFinal in the amount that match the number of directories preFinal*
This the code i have within Vi editor. But it is not working all the way. After runing bash about 10 times the letters jump from i to a random number and not in abc order. PLEASE TELL me how to do this.
... ... ...
Bre/ GSW university / Unix CIS 3200 / Simon
You might want to review the statement in item #2 above. It isn't clear to me that you're adding files to the correct directory.
Are the names of the files really random after the 1st 9, or is there just a jump with some names you expected skipped? Do you think there might be any relationship between the fact that values 61 through 69 worked as expected and the next one failed when you're using
"\xdigits" as a format string to
printf to create your file names?
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LEARN ABOUT FREEBSD
rmdir
RMDIR(1) BSD General Commands Manual RMDIR(1)
NAME
rmdir -- remove directories
SYNOPSIS
rmdir [-pv] directory ...
DESCRIPTION
The rmdir utility removes the directory entry specified by each directory argument, provided it is empty.
Arguments are processed in the order given. In order to remove both a parent directory and a subdirectory of that parent, the subdirectory
must be specified first so the parent directory is empty when rmdir tries to remove it.
The following option is available:
-p Each directory argument is treated as a pathname of which all components will be removed, if they are empty, starting with the last
most component. (See rm(1) for fully non-discriminant recursive removal.)
-v Be verbose, listing each directory as it is removed.
EXIT STATUS
The rmdir utility exits with one of the following values:
0 Each directory entry specified by a directory operand referred to an empty directory and was removed successfully.
>0 An error occurred.
EXAMPLES
Remove the directory foobar, if it is empty:
$ rmdir foobar
Remove all directories up to and including cow, stopping at the first non-empty directory (if any):
$ rmdir -p cow/horse/monkey
SEE ALSO
rm(1)
STANDARDS
The rmdir utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A rmdir command appeared in Version 1 AT&T UNIX.
BSD
March 15, 2013 BSD