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Full Discussion: Copying a file based on a incremented folder name
Top Forums UNIX for Dummies Questions & Answers Copying a file based on a incremented folder name Post 302931828 by Don Cragun on Thursday 15th of January 2015 07:06:48 PM
Old 01-15-2015
The command:
Code:
ls -d /nightly/PROD_2_6.1_???

will give you a list of the directories you're interested in in increasing alphabetic order. Since all of the numbers at the end of these directory names contain 3 digits, this will also be in increasing numeric order. Adding the -r option to ls will give you the list in reverse order. Piping the output of ls through the command:
head -n 1 will give you just the first line, which will be the directory that you want. You can use save that directory name in a variable using command substitution and variable assignment:
Code:
last_dir=$(ls -rd /nightly/PROD_2_6.1_??? | head -n 1)

To copy a file named filename.txt from that directory to another directory (in this example, named /target/directory), you can then use:
Code:
cp "$last_dir/filename.txt" "/target/directory/filename.txt"
                      or
cp "$last_dir/filename.txt" "/target/directory/"

You can change the name of the file in the target directory using the first form above; the second form will copy the source file to the target directory using the same name as the final component of the source file pathname as the filename of the copy in the target directory.

Hope this helps...
 

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LEARN ABOUT HPUX

rename

rename(2)							System Calls Manual							 rename(2)

NAME

       rename - change the name of a file

SYNOPSIS

DESCRIPTION

       The  system call causes the source file to be renamed to target.  If target exists, it is first removed.  Both source and target must be of
       the same type (that is, either directories or nondirectories), and must reside on the same file system.

       If target can be created or if it existed before the call, guarantees that an instance of target will exist, even if the system crashes	in
       the midst of the operation.

       If  the	final  component  of source is a symbolic link, the symbolic link is renamed, not the file or directory to which the symbolic link
       points.

RETURN VALUE

       returns the following values:

	      Successful completion.
	      Failure.
		     Neither file is affected.	is set to indicate the error.

ERRORS

       If fails, is set to one of the following values.

	      [EACCES]	     A component of either path prefix denies search permission.

	      [EACCES]	     The requested link requires writing to a directory without write permission.

	      [EBUSY]	     target or source is an existing directory that is the mount point for a mounted file system.

	      [EDQUOT]	     User's disk quota block or inode limit has been reached for this file system.

	      [EEXIST]	     target is a directory and is not empty.

	      [EFAULT]	     source or target points outside the allocated address space of the process.  Reliable  detection  of  this  error	is
			     implementation dependent.

	      [EINVAL]	     source is a parent directory of target, or an attempt is made to rename the or directory.

	      [EISDIR]	     target is a directory, but source is not.

	      [ELOOP]	     Too many symbolic links were encountered in translating either path name.

	      [ENAMETOOLONG] A	component  of  either path name exceeds bytes while is in effect, or the entire length of either path name exceeds
			     bytes.

	      [ENOENT]	     A component of the source path does not exist, or a path prefix of target does not exist.

	      [ENOSPC]	     The destination directory cannot be extended because of a lack of space on the file system containing the directory.

	      [ENOTDIR]      A component of either path prefix is not a directory.

	      [ENOTDIR]      source is a directory, but target is not.

	      [EPERM]	     The directory containing source has the sticky bit set, and neither the containing directory nor the source are owned
			     by the effective user ID.

	      [EPERM]	     The  target file exists, the directory containing target has the sticky bit set, and neither the containing directory
			     nor the target are owned by the effective user ID.

	      [EROFS]	     The requested link requires writing in a directory on a read-only file system.

	      [EXDEV]	     The paths named by source and target are on different logical devices (file systems).

AUTHOR

       was developed by the University of California, Berkeley.

SEE ALSO

       open(2).

STANDARDS CONFORMANCE

																	 rename(2)
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