How to find an application is 32 bit or 64 bit in Mac before installing!

A trivial job though, for geeks... but for some it might help.....

Download the application, you wish to check and install....

All the Mac installation images comes with .dmg file extension....

open the terminal application and do the following,

> open .dmg (opens the the disk image and attaches as a file system!)

>df -H (Checks the attached and mounted file system images; find the path here!)

> cd (This is will bring you the mounted application disk image!)

> cd .app/Contents/MacOS (This is the standard filesystem structure in any (application)disk image)

> file

reading the output you can find the application is for 32bit or 64bit....

i386 = 32 bit application

x86_64 = 64 bit application