Simple Question

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1

Hi All,

I am new to UNIX Shell Scripting.

I want to know what is the difference between the following two statements.

if [ -f filename1.txt ]

         and

if [ -s filename1.txt]

Thanks & Regards

2

The difference between the following two statements are:

if [ -f filename1.txt ]

test or check if filename1.txt exits

while

if [ -s filename1.txt]

test or check if filename1.txt exits and the size of filename1.txt is greater than zero

3

Thanks hassan2.....

4

$ man test

lists all the different flags you can use