Check if file is greater than 20 bytes, such as an empty gzip archive

BACKUP_FILE_SIZE=`eval ls -l ${BACKUP_FILE} | awk {'print $5'}`; if [ $BACKUP_FILE_SIZE -le 20 ]; then echo "its empty"; else echo "its not empty"; fi
If you gzip an empty file it becomes 20 bytes. Some backup checks i do check to see if the file is greater than zero size (-s flag) but this is no good here. Im sure someone has a better check than me for this? No check to see if file exists before checking it's size.

-2
By: Redrocket
2009-12-29 08:34:37

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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