Shell Programming and Scripting

Hi I'm trying to write a script which takes an integer as input and checks for files with size > input and displays it on screen.

The code I've tried :

echo 'Enter the min file size expected'
read filesize



du -ah <folder name> | awk -F: '$1>int(filesize) {print $1,$2)' is always yielding files with size greater than 1000k only.

Please help out

I don't kniw if awk can cast types like C for example. Maybe use typeset -i in shell before you hand it over to awk. Also I don't see where you hand it over to awk like:

Code:

awk -v filesize=${filesize} ...

Maybe you just did not post it, but awk does not know about shell variables by it's own.
If that is the reason what I am guessing, you can leave the typeset just out of the shell script.

Try this

Code:

du -ab | awk "\$1>int($filesize) {print \$0}"

Pludi

my version of unix doesnt support -b option on du..


Zaxxon

I've tried what you've told...

Code ( after read filesize) :

typeset -i filesize = ${filesize}
awk -v filesize = ${filesize}

du -ah <folder> | awk -F: '$1>filesize {print $1,print $2}'

Now it shows all the files present in the folder irrespective of the size criterion.


Am relatively new to the OS and scripting..so sorry for any basic errors

I guess now I get a bit closer. Using "du -ah" is giving you values in kilobyte and adding a "k" to your numbers. Maybe use "du -ak" instead so the "k" is left out.

du -ah must be the reason since it is giving a varchar, numbers mixed with a letter, the "k". So nevermind and let's stop trying around; try this one:

Code:

#!/bin/sh

get_fsize()
{
    echo
    du -ak /data |\
    awk -v fs=$1 '$1 >= fs {print $0}'
}

echo "Enter the minimum filesize to be displayed:"
read FSIZE

case ${FSIZE} in
    [0-9]*)     get_fsize ${FSIZE};;
         *)     echo "Invalid input."
                exit 1
                ;;
esac

echo -e "\nDone."

exit 0

I've tried using -ak as well as the code that you've posted.


Both are giving the same result : displaying all the files and subfolders present in the directory mentioned.