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Top Forums UNIX for Dummies Questions & Answers Using "find" and "-exec rm" ... Just no luck :( Post 302355035 by methyl on Monday 21st of September 2009 09:37:40 AM
Old 09-21-2009
Hi jiliagre, point taken (at last!). The exact space character in the filename is your issue. We don't know exactly what triggered the fault, only that quoting the braces fixed it. We don't know that the character was a actually a space character.

I do understand the documented normal behaviour of current "find ... -exec" and the passing of one argument via '{}'.

I have had the issue myself in the past with exact space characters in mainstream unix and have now traced the version tree of "find ... -exec" for what it is worth. Due to a parallel issue with "-exec" ("too many forks") I mostly used a construct which avoided "-exec" for large numbers of files. The variant just composed the command line using "normal" shell substitution and then executed the command line in parallel. The current "-exec" does not behave like this.

I too can find no current mainstream unix or Linux with the same variant documented and for completeness I'd be quite interested in any shell construct which interfered with '{}' in this context.

Right fix, wrong reason!
 

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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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