if your.copy.file gets removed, you can just create another link. keep master.file in a safe place and you will always have at least one file there. the files must exist on the same file system though. the file will only be unlinked if all references are removed.
Hi,
In a shell script I am makin use of 3 files f1,f2 and f3.txt.
When the Unix server is restarted I want to delete all these 3
files if they are existing.
( I suppose I will have to use this command
rm /thefilepath/f*
but dont know in which script to use.)
Anyone knows what can be... (6 Replies)
Hi there guys. I'm quite new in using unix and just recently experienced missing file problem. Someone accidentally or likely intentionally deleted one specific folders that contains important file. Now my question is, can any other user aside from root can do such action? Please help. ... (2 Replies)
OS: Solaris 8
I deleted a large file (around 13 Gigs) from my system.
But the output of df -k remains the same. The
capacity % is constant. However one strange thing
is happening- My available space is decreasing, my used
space in increasing (The opposite should happen).
This is happening... (2 Replies)
I am using unix via telnet ssh and i have a problem
I was testing the server.
I made a directory.
Transfered a file from an ftp to it.
Opened the file with the vi text editor
--This where my problem came.....
I tried deleting the file using rm somefile.htm
when is typed ls i noticed that... (2 Replies)
I got help in another forum but now I need further help so I figured I'd ask here. I had to write a script to delete certain filenames of certain size. I got this far..
find . -size 110c -name "*testing*" -print | xargs -n 1 rm -i
It finds the correct files, but the prompts to delete are all... (2 Replies)
How do I write a C program that will watch a directory for file creation/deletion? Maybe it would receive a signal when someone creates a file?
thanks,
Siegfried (5 Replies)
Hi Everyone,
Please help me with this. I have gone through many posts here but couldn't find what I wanted.
I have a file with 79000+ lines and I want to delete lines in a pattern.
I want to delete every 141st line in the file, starting from line 2000 till 50000.
Please help guys.
... (8 Replies)
I guess the earlier problem I had with changing user passwords and creating new users is related to the shadow file. Anytime I change something to /etc/passwd or shadow I get locked out.
HOW DO I REGENERATE THIS FILE. (1 Reply)
Hi Everyone,
There are certain files under a folder 'ABC' and the entries for these files are there in another file(fname) under a different folder 'XYZ'. I want to compare the folder contents(ABC) with
the file(fname) contents and delete the mismatching / non-existing ones from the file,... (4 Replies)
Discussion started by: swasid
4 Replies
LEARN ABOUT OSX
unlink
UNLINK(2) BSD System Calls Manual UNLINK(2)NAME
unlink -- remove directory entry
SYNOPSIS
#include <unistd.h>
int
unlink(const char *path);
DESCRIPTION
The unlink() function removes the link named by path from its directory and decrements the link count of the file which was referenced by the
link. If that decrement reduces the link count of the file to zero, and no process has the file open, then all resources associated with the
file are reclaimed. If one or more process have the file open when the last link is removed, the link is removed, but the removal of the
file is delayed until all references to it have been closed.
RETURN VALUES
Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned and errno is set to indicate the error.
ERRORS
The unlink() system call will fail if:
[EACCES] Search permission is denied for a component of the path prefix.
[EACCES] Write permission is denied on the directory containing the link to be removed.
[EBUSY] The entry to be unlinked is the mount point for a mounted file system.
[EBUSY] The file named by the path argument cannot be unlinked because it is being used by the system or by another process.
[EFAULT] Path points outside the process's allocated address space.
[EIO] An I/O error occurs while deleting the directory entry or deallocating the inode.
[ELOOP] Too many symbolic links are encountered in translating the pathname. This is taken to be indicative of a looping symbolic
link.
[ENAMETOOLONG] A component of a pathname exceeds {NAME_MAX} characters, or an entire path name exceeds {PATH_MAX} characters (possibly as
a result of expanding a symlink).
[ENOENT] The named file does not exist.
[ENOTDIR] A component of the path prefix is not a directory.
[EPERM] The named file is a directory and the effective user ID of the process is not the super-user.
[EPERM] The directory containing the file is marked sticky, and neither the containing directory nor the file to be removed are
owned by the effective user ID.
[EROFS] The named file resides on a read-only file system.
SEE ALSO close(2), link(2), rmdir(2), symlink(7)HISTORY
An unlink() function call appeared in Version 6 AT&T UNIX.
4th Berkeley Distribution June 4, 1993 4th Berkeley Distribution