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Top Forums UNIX for Dummies Questions & Answers to grep and rm including all subdirectories Post 72 by Neo on Tuesday 10th of October 2000 08:18:02 PM
Old 10-10-2000
Yes, of course. The way I do this is with the find() command. For example, to remove all mp3 files in a directory and all subdirectories;

find * -regex '.*\.mp3' -exec rm {} ;

This will recursively find all files and use the regular
expression matching any string up to the final .mp3
and then remove that file (might want to check the regex
pattern, I'm doing this without checking Smilie

Another example. You want to change the owner and group
of all files and subfiles:


find * -exec chown admin.users {} \;

My suggestion is that you do a 'man on find' and read about using the -regex and -exec flags. Fun and powerful stuff!


 

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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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