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Homework and Emergencies Homework & Coursework Questions Find and delete empty files and directories Post 302590790 by Itixop on Tuesday 17th of January 2012 02:31:58 PM
Old 01-17-2012
Question Find and delete empty files and directories

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

1. The problem statement, all variables and given/known data:
Need to make a script, to remove all empty files and folders from current category.
It also should show the name and creation date of those items.

2. Relevant commands, code, scripts, algorithms:
Must be bash script.


3. The attempts at a solution (include all code and scripts):

Tried this, but it shows only name of deleted folders...
Code:
echo Removed files:
find . -maxdepth 1 -type f -empty;
find . -maxdepth 1 -type f -empty -exec rm {} \;
echo Removed directories:
find . -maxdepth 1 -type d -empty;
find . -maxdepth 1 -type d -empty -exec rmdir {} \;

Then I tried using
Code:
ls

... But it gave too much information.. I just need name and creation time (Ok.. Creation time isn't stored in UNIX.. So I think a date of last modification would be enough.. )

Code:
echo Removed files:
find . -maxdepth 1 -type f -empty -exec ls -l;
find . -maxdepth 1 -type f -empty -exec rm {} \;
echo Removed directories:
find . -maxdepth 1 -type d -empty -exec ls -l ;
find . -maxdepth 1 -type d -empty -exec rmdir {} \;

But in this code first of all it shows only info about files.. For some reason it doesn't show anything about folders. And secondly: That's not that I need. I need name and date (maybe date, maybe date+time) of creation (last modification).

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):

Vilniaus Kolegija, Vilnius, Lithuania, M.Liogys, PIN11.

Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
 

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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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