CODEWITHSUNDEEP
bash
Bryan
Bryan

Reputation: 21

bash script to check if a file exists over a certain size

I'm trying to automate an archive process and I'm unsure how to go about a particular aspect.

Currently I manually check whether any files exist over a certain size with find . -size +4194304k -print and if it comes back without any files I'll use cpio if does I'll use tar. How would I test fot that condition?

Thanks

Bryan

Upvotes: 1

Views: 1797

Answers (1)

cEz
cEz

Reputation: 5062

#!/bin/bash

# For a list of files
#large_files=`find . -size +4194304k -print`

# For a test of files
large_files=`find . -size +4194304k -print | cut -c1`

if [[ -z $large_files ]]
then
    # No large files
else
    # Large files present
fi

Just to clarify about return codes and exit codes:

# Exit codes

$ find . -name foo && s=$?
$ echo $s
0

$ find . -name f1 && s=$?
./f1
$ echo $s
0

# Return codes

$ s=$(find . -name foo)
$ [[ ! $s ]] && echo "N"
N

$ s=$(find . -name f1)
$ [[ $s ]] && echo "Y"
Y

Upvotes: 2

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