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Full Discussion: Help - Find command to exclude sub-directories
Top Forums Shell Programming and Scripting Help - Find command to exclude sub-directories Post 302445065 by pchang on Friday 13th of August 2010 02:49:32 PM
Old 08-13-2010
Help - Find command to exclude sub-directories
Hi Forum.

I'm trying to write a script that finds and deletes files that are older than 300 days. The script will read a table that contains the following 3 columns:

1st col: “Y” means sub-directory scan; "N" means no subdirectory scan
2nd col: sub-directory location
3rd col: File prefix (* indicates all files)

For ex:
Y|/data/informatica/ming/Logs|*
N|/data/informatica/ming/ScriptsLogs|*
N|/data/sw/apps/informatica8/JBoss403/bin/|heapdump*.phd, javacore*.txt

Reason I'm using a table is that the list of directories can grow and I'm trying to avoid hard-coding anything in the script.

I have searched the forum but I haven't been successful in finding any examples on what I am trying to accomplish.

I have tried the following with the find command so far:

-prune option (but this requires hard-coding the sub-directories)
-maxdepth 1 (option does not work in my environment)
ls -l | grep -v ^d (not sure how to use this in conjuction with the find command)

In addition, the 3rd example from my table:
N|/data/sw/apps/informatica8/JBoss403/bin/|heapdump*.phd, javacore*.txt

How can I dynamically parse the 3rd field to scan for these files since there could be more files added to the 3rd field column in the future?

Any help will be greatly appreciated.
 

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LEARN ABOUT XFREE86

ln

LN(1)								   User Commands							     LN(1)

NAME

       ln - make links between files

SYNOPSIS

       ln [OPTION]... [-T] TARGET LINK_NAME   (1st form)
       ln [OPTION]... TARGET		      (2nd form)
       ln [OPTION]... TARGET... DIRECTORY     (3rd form)
       ln [OPTION]... -t DIRECTORY TARGET...  (4th form)

DESCRIPTION

       In  the	1st form, create a link to TARGET with the name LINK_NAME.  In the 2nd form, create a link to TARGET in the current directory.	In
       the 3rd and 4th forms, create links to each TARGET in DIRECTORY.  Create hard  links  by  default,  symbolic  links  with  --symbolic.	By
       default,  each  destination (name of new link) should not already exist.  When creating hard links, each TARGET must exist.  Symbolic links
       can hold arbitrary text; if later resolved, a relative link is interpreted in relation to its parent directory.

       Mandatory arguments to long options are mandatory for short options too.

       --backup[=CONTROL]
	      make a backup of each existing destination file

       -b     like --backup but does not accept an argument

       -d, -F, --directory
	      allow the superuser to attempt to hard link directories (note: will probably fail due to system restrictions,  even  for	the  supe-
	      ruser)

       -f, --force
	      remove existing destination files

       -i, --interactive
	      prompt whether to remove destinations

       -L, --logical
	      dereference TARGETs that are symbolic links

       -n, --no-dereference
	      treat LINK_NAME as a normal file if it is a symbolic link to a directory

       -P, --physical
	      make hard links directly to symbolic links

       -r, --relative
	      create symbolic links relative to link location

       -s, --symbolic
	      make symbolic links instead of hard links

       -S, --suffix=SUFFIX
	      override the usual backup suffix

       -t, --target-directory=DIRECTORY
	      specify the DIRECTORY in which to create the links

       -T, --no-target-directory
	      treat LINK_NAME as a normal file always

       -v, --verbose
	      print name of each linked file

       --help display this help and exit

       --version
	      output version information and exit

       The  backup  suffix  is '~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.  The version control method may be selected via the --backup
       option or through the VERSION_CONTROL environment variable.  Here are the values:

       none, off
	      never make backups (even if --backup is given)

       numbered, t
	      make numbered backups

       existing, nil
	      numbered if numbered backups exist, simple otherwise

       simple, never
	      always make simple backups

       Using -s ignores -L and -P.  Otherwise, the last option specified controls behavior when a TARGET is a symbolic link, defaulting to -P.

AUTHOR

       Written by Mike Parker and David MacKenzie.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report ln translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       link(2), symlink(2)

       Full documentation at: <http://www.gnu.org/software/coreutils/ln>
       or available locally via: info '(coreutils) ln invocation'

GNU coreutils 8.28						   January 2018 							     LN(1)
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