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Freddy
Freddy

Reputation: 3294

How to get the AssemblyVersion of a .Net file in Linux

Is there any way to obtain the AssemblyVersion of a .Net executable in Linux without using mono? What I am trying to have is a script or command that will let me obtain the AssemblyVersion on Linux boxes. I tried: 

#strings file.exe | grep AssemblyVersion
but it only the string and not the number. Also checked with:
#file file.exe
but only got general information.

Any ideas?

Upvotes: 39

Views: 23866

Answers (6)

vulcan raven
vulcan raven

Reputation: 33592

Another option is to use exiftool, as in:

$ exiftool -AssemblyVersion -ProductVersion ./System.Private.CoreLib.dll
Assembly Version                : 7.0.0.0
Product Version                 : 7.0.4+0a396acafe9a7d46bce11f4338dbb3dd0d99b1b4

Upvotes: 15

Scholtz
Scholtz

Reputation: 3746

to return just the vesion using monodis, use this code

monodis --assembly LDAPService.dll | grep Version | awk -F ' ' '{print $2}'

Installation packages: https://command-not-found.com/monodis

For example in ubuntu

apt-get install mono-utils

Upvotes: 3

Lucas
Lucas

Reputation: 14969

This is a really old question and just about everything has changed, but as of dotnet 2.1 (so you can dotnet tool install) you can install dotnet-ildasm:

dotnet tool install --tool-path . dotnet-ildasm

Then you can use this function:

function dll_version {
  local dll="$1"
  local version_line
  local version

  version_line="$(./dotnet-ildasm "$dll" | grep AssemblyFileVersionAttribute)"
  # Uses SerString format:
  #   01 00 is Prolog
  #   SZARRAY for NumElem
  #   version chars for Elem
  #   00 00 for NamedArgs
  # See:
  #   https://www.ecma-international.org/publications/files/ECMA-ST/ECMA-335.pdf#%5B%7B%22num%22%3A2917%2C%22gen%22%3A0%7D%2C%7B%22name%22%3A%22XYZ%22%7D%2C87%2C321%2C0%5D
  [[ $version_line =~ \(\ 01\ 00\ [0123456789aAbBcCdDeEfF][0123456789aAbBcCdDeEfF]\ (.*)\ 00\ 00\ \)$ ]]
  dotcount=0
  for i in ${BASH_REMATCH[1]}; do
    if [[ $i =~ ^2[eE]$ ]]; then
      (( dotcount++ ))
    fi
    if (( dotcount == 3 )); then
      break
    fi
    echo -n -e "\u$i"
  done
}

Upvotes: 3

Otto G
Otto G

Reputation: 780

The ikdasm tool that is also distributed with Mono is more robust than monodis, which unfortunately crashes with the message "Segmentation fault: 11" on many DLL files. The maintainers explicitly recommend the use of ikdasm rather than monodis: https://github.com/mono/mono/issues/8900#issuecomment-428392112

Usage example (with an assembly that monodis currently cannot handle):

ikdasm -assembly System.Runtime.InteropServices.RuntimeInformation.dll | grep Version:

Upvotes: 5

Jacob Foshee
Jacob Foshee

Reputation: 2773

As recommended by Jb Evain you can use the Mono Disassembler.

monodis --assembly file.exe | grep Version

Upvotes: 15

Frédéric Hamidi
Frédéric Hamidi

Reputation: 263107

Try to match version numbers that span a whole line:

$ strings file.exe | egrep '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$'

In my (few) tests, the AssemblyVersion of the binary was always the last result.

Upvotes: 34

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