Test file size

[Adam Prince]

G'day,

I would like to test a file size. If a file is equal to zero or 1 test would fail, and if a file was greater than 1 test would pass. I know there was be an easy way to do this. Thanks everyone for your help.

[Craig Rants]

If I read your question right:

NUM=`ll filename | awk '{print $7}'`
if [ $NUM -gt 0 ]
then
exec command1
else
exec command2
fi


MC,
C

[Craig Rants]

Ooops,

NUM=`ll filename | awk '{print $7}'`
if [ $NUM -ge 1 ]
then
exec command1
else
exec command2
fi

Notice the ge and 1, I did not read it right the first time...

[Craig Rants · Accepted solution]

Ok, last time

NUM=`ll filename | awk '{print $7}'`
if [ $NUM -le 1 ]
then
exec command1
else
exec command2
fi


My short term memory is shot today.

HH,
C

[Justo Exposito]

hi,

You can use find -size n[c] try to read the man page of find.

Regards,

Justo.

[Adam Prince]

Thanks for the help Craig!
The routine looks like this:
#!/bin/sh
NUM=`ls -l filename | awk '{print $5}'`
if [ "$NUM" -gt 1 ]
then
echo command1
else
echo command2
fi

[Chris Vail]

Here's an easy way:
SIZE=`ls -l $YOURFILE|awk '{ print $5 }'`
if test "$SIZE" -gt "1"
then
do something
else
do something else
fi

This will fail if the file doesn't exist, however. To test if the file exists AND THEN
test to see if its size is larger than 1 byte:
if test -f YOURFILE
then
insert the above script
fi

[A. Clay Stephenson]

Hi:

You guys are doing it the hard way.

How about
if [ -s myfile ]
then
echo "File exists and has a size greater 0"
else
echo "File does not exist"
fi

Clay

[Mark Fenton]

I'm with you Clay. The other script examples might be more useful if one were testing for a file of arbitrary size, but [ -s filename ] is much simpler.

[Darrell Allen]

Hi all,

Remember the question is whether the file size is greater than 1. Thus, [ -s myfile ] is inadequate as it tests for greater than 0.

:)

Darrell