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Full Discussion: cat files from subdirectories output using same filename
Top Forums UNIX for Dummies Questions & Answers cat files from subdirectories output using same filename Post 302444797 by agama on Thursday 12th of August 2010 09:55:02 PM
Old 08-12-2010
Something like this should work (assuming that your present working directory contains the 20?? directories.)

Code:
#!/usr/bin/env ksh

target=/tmp/cats
find 20?? -name "*.mp" | while read file
do
        base=${file##*/}    # ditch the directory portion of the filename
        cat $file >>$target/$base.new    # I like to add .new to prevent accidental overwriting while testing!
done

Change target to the directory you want to put the output files into and you're good to go.
These 2 Users Gave Thanks to agama For This Post:
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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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