Chmod list of files


 
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# 1  
Old 01-28-2013
Chmod list of files

Hi,
I have a list of files in a text file. I want to change the mode of every one of those files, but am having difficulty in doing so.

Code:
#!/bin/bash
files=/home/david/files.txt
for $item in $files {
     chmod 640 $item 
}

.. doesn't cut it.

Can anyone help?

Thanks.

Last edited by Scrutinizer; 01-28-2013 at 11:34 AM.. Reason: icode tags => code tags
# 2  
Old 01-28-2013
Try

Code:
while read item; do
   chmod 640 ${item}
done < ${files}

Hang on - obviously depends on input data too - please post a sample - I was assuming one file per line.

Last edited by zazzybob; 01-28-2013 at 11:33 AM.. Reason: Hanging on!
# 3  
Old 01-28-2013
Quote:
Originally Posted by zazzybob
Try

Code:
while read item; do
   chmod 640 ${item}
done < ${files}

Hang on - obviously depends on input data too - please post a sample - I was assuming one file per line.
Yes, the file is called /home/david/files.txt and there is one filename per line..

/home/david/fileone
/home/david/directory_example/filetwo

.. etc.

I want to read in the list, and chmod every single one of them to 640.

Thanks.
# 4  
Old 01-28-2013
OK cool - my code will work then:

Code:
files=/home/david/files.txt
while read file; do
   chmod 640 ${file}
done < ${files}

# 5  
Old 01-28-2013
Quote:
Originally Posted by zazzybob
OK cool - my code will work then:

Code:
files=/home/david/files.txt
while read file; do
   chmod 640 ${file}
done < ${files}

Hmm, that's firing up some 'no such file'....
# 6  
Old 01-28-2013
You may experience this if spaces exist in the filenames.
Try this:
Code:
files=/home/david/files.txt
while read file; do
   chmod 640 "${file}"
done < ${files}

# 7  
Old 01-28-2013
Do all the files in /home/david/files.txt exist?

You can double check prior to the chmod with (and good form on the quotes, dexdex200):

Code:
files=/home/david/files.txt
while read file; do
   if [ -e "${file}" ]; then
      chmod 640 "${file}"
   fi
done < ${files}

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