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Full Discussion: Loop through directory names
Top Forums UNIX for Dummies Questions & Answers Loop through directory names Post 302837297 by newbie83 on Thursday 25th of July 2013 01:19:09 PM
Old 07-25-2013
Loop through directory names

Some guidance is highly appreciated.

I have 10 directories with names ending with 'xyz', each of them have about 30000 files. I want to loop through the contents of each directory and produce a single output per directory. So I want to have 10 output files named 'directory_name'_out.

With multiple files I can do

Code:
for file in  *xyz
do
some command $file > $file_out
done

How do I do the same with directories?
 

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RMDIR(1)						      General Commands Manual							  RMDIR(1)

NAME
rmdir, rm - remove (unlink) directories or files SYNOPSIS
rmdir dir ... rm [ -f ] [ -r ] [ -i ] [ - ] file ... DESCRIPTION
Rmdir removes entries for the named directories, which must be empty. Rm removes the entries for one or more files from a directory. If an entry was the last link to the file, the file is destroyed. Removal of a file requires write permission in its directory, but neither read nor write permission on the file itself. If a file has no write permission and the standard input is a terminal, its permissions are printed and a line is read from the standard input. If that line begins with `y' the file is deleted, otherwise the file remains. No questions are asked and no errors are reported when the -f (force) option is given. If a designated file is a directory, an error comment is printed unless the optional argument -r has been used. In that case, rm recur- sively deletes the entire contents of the specified directory, and the directory itself. If the -i (interactive) option is in effect, rm asks whether to delete each file, and, under -r, whether to examine each directory. The null option - indicates that all the arguments following it are to be treated as file names. This allows the specification of file names starting with a minus. SEE ALSO
rm(1), unlink(2), rmdir(2) 4.2 Berkeley Distribution April 29, 1985 RMDIR(1)
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