You‘re probably trying to run a 32-bit binary on a 64-bit system that doesn‘t have 32-bit support installed.

There are three cases where you can get the message “No such file or directory”:

• The file doesn‘t exist. I presume you‘ve checked that the file does exist (perhaps because the shell completes it).
• There is a file by that name, but it‘s a dangling symbolic link.
• The file exists, and you can even read it (for example, the command file shank-linux-120720110-1-bin displays something like “ELF 32-bit LSB executable …”), and yet when you try to execute it told that the file doesn‘t exist.

To run 32bit executable file in a 64 bit multi-arch Ubuntu system, you have to add i386architecture and also you have to install libc6:i386,libncurses5:i386,libstdc++6:i386 these three library packages.

sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386

No such file or directory? But the file exists!