Move zero byte files

Shell Programming and Scripting
1

Hi,

I have a requirement to move zero byte files to an archive folder. I have the below script and it works fine if I run it from where the file is present. But when I run the script from different folder, I am getting error that file is not present. Please help.

#!/bin/ksh

INBOUND_PATH=/home/prasanna
ARCHIVAL_PATH=/home/prasanna/archive

ls -l $INBOUND_PATH | awk -F " " '{if ($5 == 0) print $9}' | xargs -I '{}' mv '{}' $ARCHIVAL_PATH

The problem is I am printing $9 from awk which gives me the filename alone. If I could get file path prefixing file name, it should resolve my issue

2

Why don't you prepend the source file in the mv command with the $INBOUND_PATH ?

3 
find $INBOUND_PATH -size 0 -print | xargs

or use -s : file is not zero size

using awk with $5 is not the safe way

4

RudiC,

I am now sure how to prepend source file. Please help on that.

Chakrapani,

I didnt went for find since the archival path is in a subfolder and it will picks up those files as well.

-maxdepth

is not supported in my version.

5

This should overcome the missing -maxdepth find option:

find "$INBOUND_PATH"  -type d ! -name . -prune -o -type f -size 0 \
    -exec sh -c 'for i do echo mv "$i" "'$ARCHIVAL_PATH'"; done' sh {} +

Remove "echo" to enable the move.

6

There is a bug: -name . only matches if the start directory is .

cd "$INBOUND_PATH" && find . -type d ! -name . -prune -o -type f -size 0 \
    -exec sh -c 'for i do echo mv "$i" "'"$ARCHIVAL_PATH"'"; done' sh {} +

A bit shorter is

cd "$INBOUND_PATH" && find . ! -name . -prune -type f -size 0 \
     -exec sh -c 'for i do echo mv "$i" "'"$ARCHIVAL_PATH"'"; done' sh {} +

I put another "quote" around the $ARCHIVE_PATH that avoids expansion+globbing in the current shell.

2 Likes
7

Thanks for the corrections MiG! I should have test the script I posted :wink:

1 Like
8

Can this be done without

9

What would be wrong with (untested!)

find "$INBOUND_PATH" ! -name . -prune -type f -size 0 \
     -exec sh -c 'for i do echo mv "$i" "'"$ARCHIVAL_PATH"'"; done' sh {} +
10

find "$INBOUND_PATH" ! -name . lists me all the files and current directory.
/home/pganesan/crypt
/home/pganesan/crypt/file1.txt
/home/pganesan/crypt/file2.txt
/home/pganesan/crypt/file_file.txt
/home/pganesan/crypt/test_file_new.txt

But find "$INBOUND_PATH" ! -name . -prune gives me the current folder alone. Files are not displayed
/home/pganesan/crypt/

11

You'll need to experiment a bit. Try

find "$INBOUND_PATH"  \! -path "$INBOUND_PATH" -prune
1 Like
12

Thank you. It works now:

find "$INBOUND_PATH"  \! -path "$INBOUND_PATH" -prune -type f -size 0 -exec sh -c 'for i do mv "$i" "'$ARCHIVAL_PATH'"; done' sh {} +