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Top Forums Shell Programming and Scripting find command with wildcard directory Post 302533074 by Corona688 on Wednesday 22nd of June 2011 05:00:23 PM
Old 06-22-2011
Quote:
Originally Posted by srini0603
can you tell me a bit more about two finds?
I think I forgot a pipe. No wonder it was puzzling you.

Code:
# Find and print all directories in .../PROD-* beginning with [0-9a-f]
find /Production/ST/st*/Outbound/Prod/PROD-* -type d -name '[0-9a-f]*' -print -name '*' -prune |
# Read lines like /Production/ST/.../bcfa0dbbcf17f28c768d1d34da6b48a4 into DIR, one-by-one
while read DIR
do
        # We feed that whole directory into another find, telling it to look
        # for files.  It prints them one by one, piped into xargs,
        # which uses them as arguments for rm.
        find "${DIR}/PGP" -type f -mtime +2 | xargs -d '\n' echo rm
 
        # Remove these directories only if they're empty
        rmdir "${DIR}/PGP" && rmdir "${DIR}"
# the rmdir's will cause some error messages when they fail, redirect that to /dev/null
done 2> /dev/null

If that didn't answer your question you'll need to ask about something specific.
Quote:
so in my case do I have to give it as 0-9,a-z as it could be anything between 0-9 and a-z as the first letter of the folder.
I don't think so, those look like hex: binary numbers encoded as ASCII digits 0-9 and a-f.
Quote:
is there any restriction on the # of directories I can search using this wildcard?
There's no limit on find -name '*', no, because it can process them one-by-one. When you expand * inside the shell itself, it has to find all of them at once, before find is even run, potentially running out of room.
Quote:
also won't the rmdir "${DIR}" delete the full structure? I just need only till the 32 char folder deleted and the rest should be intact.
"rmdir /path/to/folder" only removes 'folder'. And it won't even do that unless it's empty. So I try to remove /Production/ST/st*/Outbound/Prod/PROD-*/bcfa0dbbcf17f28c768d1d34da6b48a4/PGP, and if that succeeds, I try to remove /Production/ST/st*/Outbound/Prod/PROD-*/bcfa0dbbcf17f28c768d1d34da6b48a4 itself.

And as I said, don't remove the echo until you're sure it does what you want.
 

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FIND(1) 						      General Commands Manual							   FIND(1)

NAME
find - find files meeting a given condition SYNOPSIS
find directory expression EXAMPLES
find / -name a.out -print # Print all a.out paths find /usr/ast ! -newer f -ok rm {} ; # Ask before removing find /usr -size +20 -exec mv {} /big ; # move files > 20 blks find / -name a.out -o -name '*.o' -exec rm {}; # 2 conds DESCRIPTION
Find descends the file tree starting at the given directory checking each file in that directory and its subdirectories against a predi- cate. If the predicate is true, an action is taken. The predicates may be connected by -a (Boolean and), -o (Boolean or) and ! (Boolean negation). Each predicate is true under the conditions specified below. The integer n may also be +n to mean any value greater than n, -n to mean any value less than n, or just n for exactly n. -name s true if current filename is s (include shell wild cards) -size n true if file size is n blocks -inum n true if the current file's i-node number is n -mtime ntrue if modification time relative to today (in days) is n -links ntrue if the number of links to the file is n -newer ftrue if the file is newer than f -perm n true if the file's permission bits = n (n is in octal) -user u true if the uid = u (a numerical value, not a login name) -group gtrue if the gid = g (a numerical value, not a group name) -type x where x is bcdfug (block, char, dir, regular file, setuid, setgid) -xdev do not cross devices to search mounted file systems Following the expression can be one of the following, telling what to do when a file is found: -print print the file name on standard output -exec execute a MINIX command, {} stands for the file name -ok prompts before executing the command SEE ALSO
test(1), xargs(1). FIND(1)
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