[Beginner] Handle Files - Shell Programming and Scripting

DNAx86 · #1 01-10-2008

Hi,

How can I check if a text files is empty?
(With Bash Shell)

mirusnet · #2 01-10-2008

Quote:

Originally Posted by DNAx86

Hi,
How can I check if a text files is empty?
(With Bash Shell)

[ -s file ] && echo "File is not empty" || echo "File is empty"

DNAx86 · #3 01-10-2008

Quote:

Originally Posted by mirusnet

[ -s file ] && echo "File is not empty" || echo "File is empty"

Thank you, it works,

but can I do it in another way?

mirusnet · #4 01-10-2008

Quote:

Originally Posted by DNAx86

Thank you, it works,

but can I do it in another way?

[ `cat file | wc -l` -gt 0 ] && echo "Not empty" || echo "empty"

fpmurphy · #5 01-10-2008

Quote:

Originally Posted by DNAx86

Thank you, it works,

but can I do it in another way?

Code:

if [ -s file ]
then
  echo "File is not empty"
else
  echo "File is empty"
fi

or

Code:

if [[ -s file ]]
then
  echo "File is not empty"
else
  echo "File is empty"
fi

DNAx86 · #6 01-10-2008

thank you everybody

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